Vaccines

This transcript has been edited for clarity.

In my job, I spend 99% of my time thinking about ethical issues that arise in the care of human beings. That is the focus of our medical school, and that’s what we do. 

However, there are behaviors that are emerging with respect to pets that bear on human health and require the attention of doctors and nurses who deal with people who are pet owners.

Recently, there has been a great increase in the number of pet owners who are saying, “I’m not going to vaccinate my pets.” As horrible as this sounds, what’s happening is vaccine hesitancy about vaccines used in humans is extending through some people to their pets. 

The number of people who say they don’t trust things like rabies vaccine to be effective or safe for their pet animals is 40%, at least in surveys, and the American Veterinary Medical Association reports that 15%-18% of pet owners are not, in fact, vaccinating their pets against rabies.

Rabies, as I hope everybody knows, is one horrible disease. Even the treatment of it, should you get bitten by a rabid animal, is no fun, expensive, and hopefully something that can be administered quickly. It’s not always the case. Worldwide, at least 70,000 people die from rabies every year.

Obviously, there are many countries that are so terrified of rabies, they won’t let you bring pets in without quarantining them, say, England, for at least 6 months to a year, I believe, because they don’t want rabies getting into their country. They’re very strict about the movement of pets.

It is inexcusable for people, first, not to give their pets vaccines that prevent them getting distemper, parvovirus, or many other diseases that harm the pet. It’s also inexcusable to shorten your pet’s life or ask your patients to care for pets who get sick from many of these diseases that are vaccine preventable.

Worst of all, it’s inexcusable for any pet owner not to give a rabies vaccine to their pets. Were it up to me, I’d say you have to license your pet, and as part of that, you must mandate rabies vaccines for your dogs, cats, and other pets. 

We know what happens when people encounter wild animals like raccoons and rabbits. It is not a good situation. Your pets can easily encounter a rabid animal and then put themselves in a position where they can harm their human owners. 

We have an efficacious, safe treatment. If you’re dealing with someone, it might make sense to ask them, “Do you own a pet? Are you vaccinating?” It may not be something you’d ever thought about, but what we don’t need is rabies back in a bigger way in the United States than it’s been in the past.

I think, as a matter of prudence and public health, maybe firing up that question, “Got a pet in the house and are you vaccinating,” could be part of taking a good history.

 

Dr. Caplan is director of the division of medical ethics at New York University Langone Medical Center, New York City. He disclosed conflicts of interest with Johnson & Johnson and Medscape.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity.

In my job, I spend 99% of my time thinking about ethical issues that arise in the care of human beings. That is the focus of our medical school, and that’s what we do. 

However, there are behaviors that are emerging with respect to pets that bear on human health and require the attention of doctors and nurses who deal with people who are pet owners.

Recently, there has been a great increase in the number of pet owners who are saying, “I’m not going to vaccinate my pets.” As horrible as this sounds, what’s happening is vaccine hesitancy about vaccines used in humans is extending through some people to their pets. 

The number of people who say they don’t trust things like rabies vaccine to be effective or safe for their pet animals is 40%, at least in surveys, and the American Veterinary Medical Association reports that 15%-18% of pet owners are not, in fact, vaccinating their pets against rabies.

Rabies, as I hope everybody knows, is one horrible disease. Even the treatment of it, should you get bitten by a rabid animal, is no fun, expensive, and hopefully something that can be administered quickly. It’s not always the case. Worldwide, at least 70,000 people die from rabies every year.

Obviously, there are many countries that are so terrified of rabies, they won’t let you bring pets in without quarantining them, say, England, for at least 6 months to a year, I believe, because they don’t want rabies getting into their country. They’re very strict about the movement of pets.

It is inexcusable for people, first, not to give their pets vaccines that prevent them getting distemper, parvovirus, or many other diseases that harm the pet. It’s also inexcusable to shorten your pet’s life or ask your patients to care for pets who get sick from many of these diseases that are vaccine preventable.

Worst of all, it’s inexcusable for any pet owner not to give a rabies vaccine to their pets. Were it up to me, I’d say you have to license your pet, and as part of that, you must mandate rabies vaccines for your dogs, cats, and other pets. 

We know what happens when people encounter wild animals like raccoons and rabbits. It is not a good situation. Your pets can easily encounter a rabid animal and then put themselves in a position where they can harm their human owners. 

We have an efficacious, safe treatment. If you’re dealing with someone, it might make sense to ask them, “Do you own a pet? Are you vaccinating?” It may not be something you’d ever thought about, but what we don’t need is rabies back in a bigger way in the United States than it’s been in the past.

I think, as a matter of prudence and public health, maybe firing up that question, “Got a pet in the house and are you vaccinating,” could be part of taking a good history.

 

Dr. Caplan is director of the division of medical ethics at New York University Langone Medical Center, New York City. He disclosed conflicts of interest with Johnson & Johnson and Medscape.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity.

In my job, I spend 99% of my time thinking about ethical issues that arise in the care of human beings. That is the focus of our medical school, and that’s what we do. 

However, there are behaviors that are emerging with respect to pets that bear on human health and require the attention of doctors and nurses who deal with people who are pet owners.

Recently, there has been a great increase in the number of pet owners who are saying, “I’m not going to vaccinate my pets.” As horrible as this sounds, what’s happening is vaccine hesitancy about vaccines used in humans is extending through some people to their pets. 

The number of people who say they don’t trust things like rabies vaccine to be effective or safe for their pet animals is 40%, at least in surveys, and the American Veterinary Medical Association reports that 15%-18% of pet owners are not, in fact, vaccinating their pets against rabies.

Rabies, as I hope everybody knows, is one horrible disease. Even the treatment of it, should you get bitten by a rabid animal, is no fun, expensive, and hopefully something that can be administered quickly. It’s not always the case. Worldwide, at least 70,000 people die from rabies every year.

Obviously, there are many countries that are so terrified of rabies, they won’t let you bring pets in without quarantining them, say, England, for at least 6 months to a year, I believe, because they don’t want rabies getting into their country. They’re very strict about the movement of pets.

It is inexcusable for people, first, not to give their pets vaccines that prevent them getting distemper, parvovirus, or many other diseases that harm the pet. It’s also inexcusable to shorten your pet’s life or ask your patients to care for pets who get sick from many of these diseases that are vaccine preventable.

Worst of all, it’s inexcusable for any pet owner not to give a rabies vaccine to their pets. Were it up to me, I’d say you have to license your pet, and as part of that, you must mandate rabies vaccines for your dogs, cats, and other pets. 

We know what happens when people encounter wild animals like raccoons and rabbits. It is not a good situation. Your pets can easily encounter a rabid animal and then put themselves in a position where they can harm their human owners. 

We have an efficacious, safe treatment. If you’re dealing with someone, it might make sense to ask them, “Do you own a pet? Are you vaccinating?” It may not be something you’d ever thought about, but what we don’t need is rabies back in a bigger way in the United States than it’s been in the past.

I think, as a matter of prudence and public health, maybe firing up that question, “Got a pet in the house and are you vaccinating,” could be part of taking a good history.

 

Dr. Caplan is director of the division of medical ethics at New York University Langone Medical Center, New York City. He disclosed conflicts of interest with Johnson & Johnson and Medscape.

A version of this article first appeared on Medscape.com.

Vaccines work pretty well. But with a little help, they could work better.

Stanford researchers have developed a new vaccine helper that combines two kinds of adjuvants, ingredients that improve a vaccine’s efficacy, in a novel, customizable system.

In lab tests, the experimental additive improved the effectiveness of COVID-19 and HIV vaccine candidates, though it could be adapted to stimulate immune responses to a variety of pathogens, the researchers said. It could also be used one day to fine-tune vaccines for vulnerable groups like young children, older adults, and those with compromised immune systems.

“Current vaccines are not perfect,” said lead study author Ben Ou, a PhD candidate and researcher in the lab of Eric Appel, PhD, an associate professor of materials science and engineering, at Stanford University in California. “Many fail to generate long-lasting immunity or immunity against closely related strains [such as] flu or COVID vaccines. One way to improve them is to design more potent vaccine adjuvants.”

The study marks an advance in an area of growing scientific interest: Combining different adjuvants to enhance the immune-stimulating effect.

The Stanford scientists developed sphere-shaped nanoparticles, like tiny round cages, made of saponins, immune-stimulating molecules common in adjuvant development. To these nanoparticles, they attached Toll-like receptor (TLR) agonists, molecules that have become a focus in vaccine research because they stimulate a variety of immune responses.

Dr. Ou and the team tested the new adjuvant platform in COVID and HIV vaccines, comparing it to vaccines containing alum, a widely used adjuvant. (Alum is not used in COVID vaccines available in the United States.)

The nanoparticle-adjuvanted vaccines triggered stronger, longer-lasting effects. 

Notably, the combination of the new adjuvant system with a SARS-CoV-2 virus vaccine was effective in mice against the original SARS-CoV-2 virus and against Delta, Omicron, and other variants that emerged in the months and years after the initial outbreak. 

“Since our nanoparticle adjuvant platform is more potent than traditional/clinical vaccine adjuvants,” Dr. Ou said, “we expected mice to produce broadly neutralizing antibodies and better breadth responses.”
 

100 Years of Adjuvants

The first vaccine adjuvants were aluminum salts mixed into shots against pertussis, diphtheria, and tetanus in the 1920s. Today, alum is still used in many vaccines, including shots for diphtheria, tetanus, and pertussis; hepatitis A and B; human papillomavirus; and pneumococcal disease.

But since the 1990s, new adjuvants have come on the scene. Saponin-based compounds, harvested from the soapbark tree, are used in the Novavax COVID-19 Vaccine, Adjuvanted; a synthetic DNA adjuvant in the Heplisav-B vaccine against hepatitis B; and oil in water adjuvants using squalene in the Fluad and Fluad Quadrivalent influenza vaccines. Other vaccines, including those for chickenpox, cholera, measles, mumps, rubella, and mRNA-based COVID vaccines from Pfizer-BioNTech and Moderna, don’t contain adjuvants. 

TLR agonists have recently become research hotspots in vaccine science. 

“TLR agonists activate the innate immune system, putting it on a heightened alert state that can result in a higher antibody production and longer-lasting protection,” said David Burkhart, PhD, a research professor in biomedical and pharmaceutical sciences at the University of Montana in Missoula. He is also the chief operating officer of Inimmune, a biotech company developing vaccines and immunotherapies.

Dr. Burkhart studies TLR agonists in vaccines and other applications. “Different combinations activate different parts of the immune system,” he said. “TLR4 might activate the army, while TLR7 might activate the air force. You might need both in one vaccine.”

TLR agonists have also shown promise against Alzheimer’s disease, allergies, cancer, and even addiction. In immune’s experimental immunotherapy using TLR agonists for advanced solid tumors has just entered human trials, and the company is looking at a TLR agonist therapy for allergic rhinitis. 
 

Combining Forces

In the new study, researchers tested five different combinations of TLR agonists hooked to the saponin nanoparticle framework. Each elicited a slightly different response from the immune cells. 

“Our immune systems generate different downstream immune responses based on which TLRs are activated,” Dr. Ou said.

Ultimately, the advance could spur the development of vaccines tuned for stronger immune protection.

“We need different immune responses to fight different types of pathogens,” Dr. Ou said. “Depending on what specific virus/disease the vaccine is formulated for, activation of one specific TLR may confer better protection than another TLR.”

According to Dr. Burkhart, combining a saponin with a TLR agonist has found success before.

Biopharma company GSK (formerly GlaxoSmithKline) used the combination in its AS01 adjuvant, in the vaccine Shingrix against herpes zoster. The live-attenuated yellow fever vaccine, given to more than 600 million people around the world and considered one of the most powerful vaccines ever developed, uses several TLR agonists. 

The Stanford paper, Dr. Burkhart said, “is a nice demonstration of the enhanced efficacy [that] adjuvants can provide to vaccines by exploiting the synergy different adjuvants and TLR agonists can provide when used in combination.”
 

Tailoring Vaccines

The customizable aspect of TLR agonists is important too, Dr. Burkhart said. 

“The human immune system changes dramatically from birth to childhood into adulthood into older maturity,” he said. “It’s not a one-size-fits-all. Vaccines need to be tailored to these populations for maximum effectiveness and safety. TLRAs [TLR agonists] are a highly valuable tool in the vaccine toolbox. I think it’s inevitable we’ll have more in the future.”

That’s what the Stanford researchers hope for.

They noted in the study that the nanoparticle platform could easily be used to test different TLR agonist adjuvant combinations in vaccines.

But human studies are still a ways off. Tests in larger animals would likely come next, Dr. Ou said. 

“We now have a single nanoparticle adjuvant platform with formulations containing different TLRs,” Dr. Ou said. “Scientists can pick which specific formulation is the most suitable for their needs.”

A version of this article first appeared on Medscape.com.

Vaccines work pretty well. But with a little help, they could work better.

Stanford researchers have developed a new vaccine helper that combines two kinds of adjuvants, ingredients that improve a vaccine’s efficacy, in a novel, customizable system.

In lab tests, the experimental additive improved the effectiveness of COVID-19 and HIV vaccine candidates, though it could be adapted to stimulate immune responses to a variety of pathogens, the researchers said. It could also be used one day to fine-tune vaccines for vulnerable groups like young children, older adults, and those with compromised immune systems.

“Current vaccines are not perfect,” said lead study author Ben Ou, a PhD candidate and researcher in the lab of Eric Appel, PhD, an associate professor of materials science and engineering, at Stanford University in California. “Many fail to generate long-lasting immunity or immunity against closely related strains [such as] flu or COVID vaccines. One way to improve them is to design more potent vaccine adjuvants.”

The study marks an advance in an area of growing scientific interest: Combining different adjuvants to enhance the immune-stimulating effect.

The Stanford scientists developed sphere-shaped nanoparticles, like tiny round cages, made of saponins, immune-stimulating molecules common in adjuvant development. To these nanoparticles, they attached Toll-like receptor (TLR) agonists, molecules that have become a focus in vaccine research because they stimulate a variety of immune responses.

Dr. Ou and the team tested the new adjuvant platform in COVID and HIV vaccines, comparing it to vaccines containing alum, a widely used adjuvant. (Alum is not used in COVID vaccines available in the United States.)

The nanoparticle-adjuvanted vaccines triggered stronger, longer-lasting effects. 

Notably, the combination of the new adjuvant system with a SARS-CoV-2 virus vaccine was effective in mice against the original SARS-CoV-2 virus and against Delta, Omicron, and other variants that emerged in the months and years after the initial outbreak. 

“Since our nanoparticle adjuvant platform is more potent than traditional/clinical vaccine adjuvants,” Dr. Ou said, “we expected mice to produce broadly neutralizing antibodies and better breadth responses.”
 

100 Years of Adjuvants

The first vaccine adjuvants were aluminum salts mixed into shots against pertussis, diphtheria, and tetanus in the 1920s. Today, alum is still used in many vaccines, including shots for diphtheria, tetanus, and pertussis; hepatitis A and B; human papillomavirus; and pneumococcal disease.

But since the 1990s, new adjuvants have come on the scene. Saponin-based compounds, harvested from the soapbark tree, are used in the Novavax COVID-19 Vaccine, Adjuvanted; a synthetic DNA adjuvant in the Heplisav-B vaccine against hepatitis B; and oil in water adjuvants using squalene in the Fluad and Fluad Quadrivalent influenza vaccines. Other vaccines, including those for chickenpox, cholera, measles, mumps, rubella, and mRNA-based COVID vaccines from Pfizer-BioNTech and Moderna, don’t contain adjuvants. 

TLR agonists have recently become research hotspots in vaccine science. 

“TLR agonists activate the innate immune system, putting it on a heightened alert state that can result in a higher antibody production and longer-lasting protection,” said David Burkhart, PhD, a research professor in biomedical and pharmaceutical sciences at the University of Montana in Missoula. He is also the chief operating officer of Inimmune, a biotech company developing vaccines and immunotherapies.

Dr. Burkhart studies TLR agonists in vaccines and other applications. “Different combinations activate different parts of the immune system,” he said. “TLR4 might activate the army, while TLR7 might activate the air force. You might need both in one vaccine.”

TLR agonists have also shown promise against Alzheimer’s disease, allergies, cancer, and even addiction. In immune’s experimental immunotherapy using TLR agonists for advanced solid tumors has just entered human trials, and the company is looking at a TLR agonist therapy for allergic rhinitis. 
 

Combining Forces

In the new study, researchers tested five different combinations of TLR agonists hooked to the saponin nanoparticle framework. Each elicited a slightly different response from the immune cells. 

“Our immune systems generate different downstream immune responses based on which TLRs are activated,” Dr. Ou said.

Ultimately, the advance could spur the development of vaccines tuned for stronger immune protection.

“We need different immune responses to fight different types of pathogens,” Dr. Ou said. “Depending on what specific virus/disease the vaccine is formulated for, activation of one specific TLR may confer better protection than another TLR.”

According to Dr. Burkhart, combining a saponin with a TLR agonist has found success before.

Biopharma company GSK (formerly GlaxoSmithKline) used the combination in its AS01 adjuvant, in the vaccine Shingrix against herpes zoster. The live-attenuated yellow fever vaccine, given to more than 600 million people around the world and considered one of the most powerful vaccines ever developed, uses several TLR agonists. 

The Stanford paper, Dr. Burkhart said, “is a nice demonstration of the enhanced efficacy [that] adjuvants can provide to vaccines by exploiting the synergy different adjuvants and TLR agonists can provide when used in combination.”
 

Tailoring Vaccines

The customizable aspect of TLR agonists is important too, Dr. Burkhart said. 

“The human immune system changes dramatically from birth to childhood into adulthood into older maturity,” he said. “It’s not a one-size-fits-all. Vaccines need to be tailored to these populations for maximum effectiveness and safety. TLRAs [TLR agonists] are a highly valuable tool in the vaccine toolbox. I think it’s inevitable we’ll have more in the future.”

That’s what the Stanford researchers hope for.

They noted in the study that the nanoparticle platform could easily be used to test different TLR agonist adjuvant combinations in vaccines.

But human studies are still a ways off. Tests in larger animals would likely come next, Dr. Ou said. 

“We now have a single nanoparticle adjuvant platform with formulations containing different TLRs,” Dr. Ou said. “Scientists can pick which specific formulation is the most suitable for their needs.”

A version of this article first appeared on Medscape.com.

Vaccines work pretty well. But with a little help, they could work better.

Stanford researchers have developed a new vaccine helper that combines two kinds of adjuvants, ingredients that improve a vaccine’s efficacy, in a novel, customizable system.

In lab tests, the experimental additive improved the effectiveness of COVID-19 and HIV vaccine candidates, though it could be adapted to stimulate immune responses to a variety of pathogens, the researchers said. It could also be used one day to fine-tune vaccines for vulnerable groups like young children, older adults, and those with compromised immune systems.

“Current vaccines are not perfect,” said lead study author Ben Ou, a PhD candidate and researcher in the lab of Eric Appel, PhD, an associate professor of materials science and engineering, at Stanford University in California. “Many fail to generate long-lasting immunity or immunity against closely related strains [such as] flu or COVID vaccines. One way to improve them is to design more potent vaccine adjuvants.”

The study marks an advance in an area of growing scientific interest: Combining different adjuvants to enhance the immune-stimulating effect.

The Stanford scientists developed sphere-shaped nanoparticles, like tiny round cages, made of saponins, immune-stimulating molecules common in adjuvant development. To these nanoparticles, they attached Toll-like receptor (TLR) agonists, molecules that have become a focus in vaccine research because they stimulate a variety of immune responses.

Dr. Ou and the team tested the new adjuvant platform in COVID and HIV vaccines, comparing it to vaccines containing alum, a widely used adjuvant. (Alum is not used in COVID vaccines available in the United States.)

The nanoparticle-adjuvanted vaccines triggered stronger, longer-lasting effects. 

Notably, the combination of the new adjuvant system with a SARS-CoV-2 virus vaccine was effective in mice against the original SARS-CoV-2 virus and against Delta, Omicron, and other variants that emerged in the months and years after the initial outbreak. 

“Since our nanoparticle adjuvant platform is more potent than traditional/clinical vaccine adjuvants,” Dr. Ou said, “we expected mice to produce broadly neutralizing antibodies and better breadth responses.”
 

100 Years of Adjuvants

The first vaccine adjuvants were aluminum salts mixed into shots against pertussis, diphtheria, and tetanus in the 1920s. Today, alum is still used in many vaccines, including shots for diphtheria, tetanus, and pertussis; hepatitis A and B; human papillomavirus; and pneumococcal disease.

But since the 1990s, new adjuvants have come on the scene. Saponin-based compounds, harvested from the soapbark tree, are used in the Novavax COVID-19 Vaccine, Adjuvanted; a synthetic DNA adjuvant in the Heplisav-B vaccine against hepatitis B; and oil in water adjuvants using squalene in the Fluad and Fluad Quadrivalent influenza vaccines. Other vaccines, including those for chickenpox, cholera, measles, mumps, rubella, and mRNA-based COVID vaccines from Pfizer-BioNTech and Moderna, don’t contain adjuvants. 

TLR agonists have recently become research hotspots in vaccine science. 

“TLR agonists activate the innate immune system, putting it on a heightened alert state that can result in a higher antibody production and longer-lasting protection,” said David Burkhart, PhD, a research professor in biomedical and pharmaceutical sciences at the University of Montana in Missoula. He is also the chief operating officer of Inimmune, a biotech company developing vaccines and immunotherapies.

Dr. Burkhart studies TLR agonists in vaccines and other applications. “Different combinations activate different parts of the immune system,” he said. “TLR4 might activate the army, while TLR7 might activate the air force. You might need both in one vaccine.”

TLR agonists have also shown promise against Alzheimer’s disease, allergies, cancer, and even addiction. In immune’s experimental immunotherapy using TLR agonists for advanced solid tumors has just entered human trials, and the company is looking at a TLR agonist therapy for allergic rhinitis. 
 

Combining Forces

In the new study, researchers tested five different combinations of TLR agonists hooked to the saponin nanoparticle framework. Each elicited a slightly different response from the immune cells. 

“Our immune systems generate different downstream immune responses based on which TLRs are activated,” Dr. Ou said.

Ultimately, the advance could spur the development of vaccines tuned for stronger immune protection.

“We need different immune responses to fight different types of pathogens,” Dr. Ou said. “Depending on what specific virus/disease the vaccine is formulated for, activation of one specific TLR may confer better protection than another TLR.”

According to Dr. Burkhart, combining a saponin with a TLR agonist has found success before.

Biopharma company GSK (formerly GlaxoSmithKline) used the combination in its AS01 adjuvant, in the vaccine Shingrix against herpes zoster. The live-attenuated yellow fever vaccine, given to more than 600 million people around the world and considered one of the most powerful vaccines ever developed, uses several TLR agonists. 

The Stanford paper, Dr. Burkhart said, “is a nice demonstration of the enhanced efficacy [that] adjuvants can provide to vaccines by exploiting the synergy different adjuvants and TLR agonists can provide when used in combination.”
 

Tailoring Vaccines

The customizable aspect of TLR agonists is important too, Dr. Burkhart said. 

“The human immune system changes dramatically from birth to childhood into adulthood into older maturity,” he said. “It’s not a one-size-fits-all. Vaccines need to be tailored to these populations for maximum effectiveness and safety. TLRAs [TLR agonists] are a highly valuable tool in the vaccine toolbox. I think it’s inevitable we’ll have more in the future.”

That’s what the Stanford researchers hope for.

They noted in the study that the nanoparticle platform could easily be used to test different TLR agonist adjuvant combinations in vaccines.

But human studies are still a ways off. Tests in larger animals would likely come next, Dr. Ou said. 

“We now have a single nanoparticle adjuvant platform with formulations containing different TLRs,” Dr. Ou said. “Scientists can pick which specific formulation is the most suitable for their needs.”

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity.

I would like to briefly discuss what I consider to be a very discouraging report and one that I believe we as an oncology society and, quite frankly, as a medical community need to deal with. 

The manuscript I’m referring to is from the United States Department of Health and Human Services, titled, “Human Papillomavirus Vaccination Coverage in Children Ages 9-17 Years: United States, 2022.” This particular analysis looked at the coverage of both men and women — young boys and young girls, I would say — receiving at least one dose of the recommended human papillomavirus (HPV) vaccination. 

Since 2006, girls have been recommended to receive HPV vaccination; for boys, it’s been since 2011. Certainly, the time period that we’re considering falls within the recommendations based on overwhelmingly positive data. Now, today, still, the recommendation is for more than one vaccine. Obviously, there may be evidence in the future that a single vaccination may be acceptable or appropriate. But today, it’s more than one. 

In this particular analysis, they were looking at just a single vaccination. The vaccines have targeted young individuals, both male and female children aged 11-12 years, but it’s certainly acceptable to look starting at age 9. 

What is the bottom line? At least one dose of the HPV vaccination was given to 38.6% of children aged 9-17 years in 2022. We are talking about a cancer-preventive vaccine, which on the basis of population-based data in the United States, but also in other countries, is incredibly effective in preventing HPV-associated cancers. This not only includes cervical cancer, but also a large percentage of head and neck cancers.

For this vaccine, which is incredibly safe and incredibly effective, in this country, only 38.6% have received even a single dose. It is noted that the individuals with private insurance had a higher rate, at 41.5%, than individuals with no insurance, at only 20.7%. 

In my opinion, this is clearly a failure of our public health establishment at all levels. My own focus has been in gynecologic cancers. I’ve seen young women with advanced cervical cancer, and this is a disease we can prevent. Yet, this is where we are. 

For those of you who are interested in cancer prevention or public health, I think this is a very sobering statistic. It’s my plea and my hope that we can, as a society, somehow do something about it. 

I thank you for listening. I would encourage you to think about this question if you’re in this area.
 

Dr. Markman, professor, Department of Medical Oncology and Therapeutics Research, City of Hope, Duarte, California, and president of Medicine & Science, City of Hope Atlanta, Chicago, and Phoenix, disclosed ties with GlaxoSmithKline and AstraZeneca.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

I would like to briefly discuss what I consider to be a very discouraging report and one that I believe we as an oncology society and, quite frankly, as a medical community need to deal with. 

The manuscript I’m referring to is from the United States Department of Health and Human Services, titled, “Human Papillomavirus Vaccination Coverage in Children Ages 9-17 Years: United States, 2022.” This particular analysis looked at the coverage of both men and women — young boys and young girls, I would say — receiving at least one dose of the recommended human papillomavirus (HPV) vaccination. 

Since 2006, girls have been recommended to receive HPV vaccination; for boys, it’s been since 2011. Certainly, the time period that we’re considering falls within the recommendations based on overwhelmingly positive data. Now, today, still, the recommendation is for more than one vaccine. Obviously, there may be evidence in the future that a single vaccination may be acceptable or appropriate. But today, it’s more than one. 

In this particular analysis, they were looking at just a single vaccination. The vaccines have targeted young individuals, both male and female children aged 11-12 years, but it’s certainly acceptable to look starting at age 9. 

What is the bottom line? At least one dose of the HPV vaccination was given to 38.6% of children aged 9-17 years in 2022. We are talking about a cancer-preventive vaccine, which on the basis of population-based data in the United States, but also in other countries, is incredibly effective in preventing HPV-associated cancers. This not only includes cervical cancer, but also a large percentage of head and neck cancers.

For this vaccine, which is incredibly safe and incredibly effective, in this country, only 38.6% have received even a single dose. It is noted that the individuals with private insurance had a higher rate, at 41.5%, than individuals with no insurance, at only 20.7%. 

In my opinion, this is clearly a failure of our public health establishment at all levels. My own focus has been in gynecologic cancers. I’ve seen young women with advanced cervical cancer, and this is a disease we can prevent. Yet, this is where we are. 

For those of you who are interested in cancer prevention or public health, I think this is a very sobering statistic. It’s my plea and my hope that we can, as a society, somehow do something about it. 

I thank you for listening. I would encourage you to think about this question if you’re in this area.
 

Dr. Markman, professor, Department of Medical Oncology and Therapeutics Research, City of Hope, Duarte, California, and president of Medicine & Science, City of Hope Atlanta, Chicago, and Phoenix, disclosed ties with GlaxoSmithKline and AstraZeneca.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

I would like to briefly discuss what I consider to be a very discouraging report and one that I believe we as an oncology society and, quite frankly, as a medical community need to deal with. 

The manuscript I’m referring to is from the United States Department of Health and Human Services, titled, “Human Papillomavirus Vaccination Coverage in Children Ages 9-17 Years: United States, 2022.” This particular analysis looked at the coverage of both men and women — young boys and young girls, I would say — receiving at least one dose of the recommended human papillomavirus (HPV) vaccination. 

Since 2006, girls have been recommended to receive HPV vaccination; for boys, it’s been since 2011. Certainly, the time period that we’re considering falls within the recommendations based on overwhelmingly positive data. Now, today, still, the recommendation is for more than one vaccine. Obviously, there may be evidence in the future that a single vaccination may be acceptable or appropriate. But today, it’s more than one. 

In this particular analysis, they were looking at just a single vaccination. The vaccines have targeted young individuals, both male and female children aged 11-12 years, but it’s certainly acceptable to look starting at age 9. 

What is the bottom line? At least one dose of the HPV vaccination was given to 38.6% of children aged 9-17 years in 2022. We are talking about a cancer-preventive vaccine, which on the basis of population-based data in the United States, but also in other countries, is incredibly effective in preventing HPV-associated cancers. This not only includes cervical cancer, but also a large percentage of head and neck cancers.

For this vaccine, which is incredibly safe and incredibly effective, in this country, only 38.6% have received even a single dose. It is noted that the individuals with private insurance had a higher rate, at 41.5%, than individuals with no insurance, at only 20.7%. 

In my opinion, this is clearly a failure of our public health establishment at all levels. My own focus has been in gynecologic cancers. I’ve seen young women with advanced cervical cancer, and this is a disease we can prevent. Yet, this is where we are. 

For those of you who are interested in cancer prevention or public health, I think this is a very sobering statistic. It’s my plea and my hope that we can, as a society, somehow do something about it. 

I thank you for listening. I would encourage you to think about this question if you’re in this area.
 

Dr. Markman, professor, Department of Medical Oncology and Therapeutics Research, City of Hope, Duarte, California, and president of Medicine & Science, City of Hope Atlanta, Chicago, and Phoenix, disclosed ties with GlaxoSmithKline and AstraZeneca.

A version of this article appeared on Medscape.com.

RSV, influenza, and now SARS-CoV2 drive annual winter respiratory surges. For children younger than 5 years old, RSV is the main drive — approximately 2,000,000 outpatient/ED visits and about 75,000 hospitalizations annually. RSV disease ranges from upper respiratory tract infections, eg, in older children and healthy adults, to more severe lower tract disease in young children and the elderly. Premature infants and high-risk groups are particularly prone to severe disease.¹ Up to 300 pediatric RSV deaths occur yearly. “Normal” RSV seasons start in mid-November, peak in late December-January, and end after April. Note: More drawn out seasons occur in southern latitudes, eg Texas or Florida. But lately RSV seasons have been anything but normal.

2015-2016 to 2022-2023

RSV data from the Pediatric Health Information System (PHIS), collected at over 49 US children’s hospitals during 2015 to early 2023, show how crazy RSV seasons have been lately.² The involved months, intensity, and duration of four prepandemic seasons were pretty “normal” (Figure 1). The 2019-2020 season started normally, peaked in January 2020, and was slowing as expected by February. But when SARS-Cov-2 restrictions kicked in during mid-March, RSV detections tanked to almost nothing (ditto other respiratory viruses). A near 14-month RSV hiatus meant that the 2020-2021 RSV season never materialized. However, RSV was not done with us in 2021. It rebounded in May with weekly hospitalizations peaking in late July; this “rebound season” lasted 9 months, not dropping to baseline until February 2022 (Figure 1).

I guess we should have expected a post-pandemic “disturbance in the Force,” as Yoda once said; but I sure didn’t see a prolonged summer/fall/early winter RSV season coming. It was like two “normal” seasons mashed up into one late-but-long season. Not to be outdone, the 2022-2023 RSV season started early (September) and hospitalizations skyrocketed to peak in November at over twice the peak number from any year since 2015, overloading hospitals (influenza and SARS-Cov-2 seasons were co-circulating). The season terminated early though (March 2023).

Okay, so RSV seasonality/intensity were weird post pandemic, but was anything else different? Some 2021-2023 data suggest more RSV disease in older children, rather than the usual younger than 18 month-olds going through their first winter.³ More medically attended RSV in older ages (2-4 years of life) may have been due to the pandemic year without RSV circulation distorting herd immunity, ie older children remained RSV naive. Other data suggest the apparent increase was really just more frequent multiplex viral testing in older children triggered by SARS-CoV-2 co-circulation.⁴ More data are needed to decide.
 

CDC 2023-2024 RESP-NET data

The 2023-2024 winter surge (Figure 2), as measured by RESP-NET’s cumulative RSV,influenza and SARS-CoV-2 hospitalization rates for 0- to 5-year-olds,⁵ shows that all three viruses’ seasonal months were normal-ish: late October 2023 start, late December-early January peak, and mid-May 2024 return to baseline. RSV season was approximately 22% less severe by area-under-the-curve calculations compared with 2022-2023, but still worse than prepandemic years.⁶

One wonders if the 2022-2023 RSV season might have been worse but for use of the limited supply of nirsevimab.⁷

Viral Parade

Now we ready ourselves for the 2024-2025 respiratory surge, wondering what nature has in store for us. Will the usual “respiratory virus parade” occur? Will rhinovirus and parainfluenza prevalence bump after a few weeks of schools being in session, adding to the now-usual summer/fall SARS-CoV-2 surge? Note: Twenty-seven states as of Aug. 16 had high SARS-CoV-2 detection in wastewater. Will RSV and influenza start sometime in October/November, peak in January (along with rising SARS-CoV2 activity), followed by a second parainfluenza bump as SARS-CoV-2, influenza, and RSV drop off in April/May? Further, will RSV and influenza seasons be more or less severe than the last 2 years?

Prediction

The overall 2024-2025 respiratory season will be less severe than the past 2 years and hopefully than recent prepandemic years. What is the blueprint for a milder season? First, herd immunity to non-RSV and non-influenza viruses (parainfluenza, rhinovirus, metapneumovirus, adenovirus) in older children should be normalized after 2 years back to usual social activity. So, I expect no mega-seasons from them. The emerging SARS-CoV-2 virus (LB.1) is immunologically close to its recent still-circulating ancestors (KP.2, KP.2.3, KP.³ and KP.3.1.1), so existing SARS-CoV2 herd immunity along with recommended booster vaccine uptake should keep the lid on SARS-CoV2.

Influenza Could Be the Bad News

Which type will dominate? Will a drift/shift occur or vaccine-mismatch reduce vaccine effectiveness? Can we get at least half the population influenza vaccinated, given the vaccine fatigue permeating the US population? The influenza season now underway in the Southern Hemisphere usually helps us predict our season. The Australian May-August 2024 experience (still on an upward trajectory for severity in mid-August) saw no drift/shift or vaccine mismatch. However, this 2024 season has been as severe as 2022 (their worst in a decade). That said, more than 95% has been type A (mostly H1N1 but H3N2 increased in July). So, if our overall 2024-2025 respiratory season is not milder, influenza is the most likely culprit. To reduce chances of influenza being the fly-in-the-ointment, we need to be particularly proactive with seasonal influenza vaccine which is back to the traditional trivalent formulation (one H1N1, one H3N2, and one B type).⁸ All of this could go out the window if avian influenza becomes more transmissible, but that seems unlikely at present.

Mild RSV Season?

RSV season should be blunted because of the increased use of both the remarkably effective CDC-recommended maternal RSV vaccine⁹ (one dose during pregnancy weeks 32 through 36, administered September through January) and of nirsevimab (up to 90% reduction in hospitalizations and ED visits).¹⁰ (See Figure 3.)

I also expect residual disease to occur mostly in younger than 18 month-olds (the “normal” aged population experiencing their first winter), who received no passive immunity (mother RSV unvaccinated and child did not receive nirsevimab). Some disease will still occur in high-risk infants/children. However, unlike active vaccination strategies, a competent immune system is not required to benefit from passive antibody, whether transplacental or directly administered.
 

Deep Thought

What if the traditional RSV seasonal hospitalization surge fails to materialize this season? It could happen. If we could get high acceptance/uptake of maternal vaccine and infant nirsevimab, RSV season could resemble the dramatic drop in rotavirus disease the second year after rotavirus vaccine introduction. We could be asking ourselves — “What happened to RSV?”

Dr. Harrison is professor of pediatrics and pediatric infectious diseases at Children’s Mercy Hospitals and Clinics, Kansas City, Missouri. He said he had no relevant financial disclosures. Email him at [email protected].

References

1. CDC. RSV in Infants and Young Children. Respiratory Syncytial Virus Infection (RSV). June 18, 2024. https://www.cdc.gov/rsv/infants-young-children/index.html.

2. Suss RJ and Simões EAF. Respiratory Syncytial Virus Hospital-Based Burden of Disease in Children Younger Than 5 Respiratory Syncytial Virus Hospital-Based Burden of Disease in Children Younger Than 5 Years, 2015-2022. JAMA Netw Open. 2024;7(4):e247125. doi:10.1001/jamanetworkopen.2024.7125.

3. Winthrop ZA et al. Pediatric Respiratory Syncytial Virus Hospitalizations and Respiratory Support After the COVID-19 Pandemic. JAMA Netw Open. 2024;7(6):e2416852. doi:10.1001/jamanetworkopen.2024.16852.

4. Petros BA et al. Increased Pediatric RSV Case Counts Following the Emergence of SARS-CoV-2 Are Attributable to Increased Testing. medRxiv [Preprint]. 2024 Feb 12:2024.02.06.24302387. doi: 10.1101/2024.02.06.24302387.

5. Rates of Laboratory-Confirmed RSV, COVID-19, and Flu Hospitalizations from the RESP-NET Surveillance Systems. Centers for Disease Control and Prevention. https://data.cdc.gov/Public-Health-Surveillance/Rates-of-Laboratory-Confirmed-RSV-COVID-19-and-Flu/kvib-3txy/about_data.

6. CDC. Evaluating the 2023-2024 Respiratory Disease Season Outlook. CFA: Qualitative Assessments. August 14, 2024. https://www.cdc.gov/cfa-qualitative-assessments/php/data-research/2023-2024-season-outlook-retro.html.

7. Health Alert Network (HAN). Limited Availability of Nirsevimab in the United States—Interim CDC Recommendations to Protect Infants from Respiratory Syncytial Virus (RSV) during the 2023–2024 Respiratory Virus Season. October 23, 2023. https://emergency.cdc.gov/han/2023/han00499.asp.

8. CDC. Information for the 2024-2025 Flu Season. Centers for Disease Control and Prevention. March 14, 2024. https://www.cdc.gov/flu/season/faq-flu-season-2024-2025.htm.

9. Kampmann B et al. Bivalent Prefusion F Vaccine in Pregnancy to Prevent RSV Illness in Infants. N Engl J Med. 2023 Apr 20;388(16):1451-1464. doi: 10.1056/NEJMoa2216480.

10. Moline HL. Early Estimate of Nirsevimab Effectiveness for Prevention of Respiratory Syncytial Virus–Associated Hospitalization Among Infants Entering Their First Respiratory Syncytial Virus Season — New Vaccine Surveillance Network, October 2023–February 2024. MMWR Morb Mortal Wkly Rep. 2024;73. doi: 10.15585/mmwr.mm7309a4.

RSV, influenza, and now SARS-CoV2 drive annual winter respiratory surges. For children younger than 5 years old, RSV is the main drive — approximately 2,000,000 outpatient/ED visits and about 75,000 hospitalizations annually. RSV disease ranges from upper respiratory tract infections, eg, in older children and healthy adults, to more severe lower tract disease in young children and the elderly. Premature infants and high-risk groups are particularly prone to severe disease.¹ Up to 300 pediatric RSV deaths occur yearly. “Normal” RSV seasons start in mid-November, peak in late December-January, and end after April. Note: More drawn out seasons occur in southern latitudes, eg Texas or Florida. But lately RSV seasons have been anything but normal.

2015-2016 to 2022-2023

RSV data from the Pediatric Health Information System (PHIS), collected at over 49 US children’s hospitals during 2015 to early 2023, show how crazy RSV seasons have been lately.² The involved months, intensity, and duration of four prepandemic seasons were pretty “normal” (Figure 1). The 2019-2020 season started normally, peaked in January 2020, and was slowing as expected by February. But when SARS-Cov-2 restrictions kicked in during mid-March, RSV detections tanked to almost nothing (ditto other respiratory viruses). A near 14-month RSV hiatus meant that the 2020-2021 RSV season never materialized. However, RSV was not done with us in 2021. It rebounded in May with weekly hospitalizations peaking in late July; this “rebound season” lasted 9 months, not dropping to baseline until February 2022 (Figure 1).

I guess we should have expected a post-pandemic “disturbance in the Force,” as Yoda once said; but I sure didn’t see a prolonged summer/fall/early winter RSV season coming. It was like two “normal” seasons mashed up into one late-but-long season. Not to be outdone, the 2022-2023 RSV season started early (September) and hospitalizations skyrocketed to peak in November at over twice the peak number from any year since 2015, overloading hospitals (influenza and SARS-Cov-2 seasons were co-circulating). The season terminated early though (March 2023).

Okay, so RSV seasonality/intensity were weird post pandemic, but was anything else different? Some 2021-2023 data suggest more RSV disease in older children, rather than the usual younger than 18 month-olds going through their first winter.³ More medically attended RSV in older ages (2-4 years of life) may have been due to the pandemic year without RSV circulation distorting herd immunity, ie older children remained RSV naive. Other data suggest the apparent increase was really just more frequent multiplex viral testing in older children triggered by SARS-CoV-2 co-circulation.⁴ More data are needed to decide.
 

CDC 2023-2024 RESP-NET data

The 2023-2024 winter surge (Figure 2), as measured by RESP-NET’s cumulative RSV,influenza and SARS-CoV-2 hospitalization rates for 0- to 5-year-olds,⁵ shows that all three viruses’ seasonal months were normal-ish: late October 2023 start, late December-early January peak, and mid-May 2024 return to baseline. RSV season was approximately 22% less severe by area-under-the-curve calculations compared with 2022-2023, but still worse than prepandemic years.⁶

One wonders if the 2022-2023 RSV season might have been worse but for use of the limited supply of nirsevimab.⁷

Viral Parade

Now we ready ourselves for the 2024-2025 respiratory surge, wondering what nature has in store for us. Will the usual “respiratory virus parade” occur? Will rhinovirus and parainfluenza prevalence bump after a few weeks of schools being in session, adding to the now-usual summer/fall SARS-CoV-2 surge? Note: Twenty-seven states as of Aug. 16 had high SARS-CoV-2 detection in wastewater. Will RSV and influenza start sometime in October/November, peak in January (along with rising SARS-CoV2 activity), followed by a second parainfluenza bump as SARS-CoV-2, influenza, and RSV drop off in April/May? Further, will RSV and influenza seasons be more or less severe than the last 2 years?

Prediction

The overall 2024-2025 respiratory season will be less severe than the past 2 years and hopefully than recent prepandemic years. What is the blueprint for a milder season? First, herd immunity to non-RSV and non-influenza viruses (parainfluenza, rhinovirus, metapneumovirus, adenovirus) in older children should be normalized after 2 years back to usual social activity. So, I expect no mega-seasons from them. The emerging SARS-CoV-2 virus (LB.1) is immunologically close to its recent still-circulating ancestors (KP.2, KP.2.3, KP.³ and KP.3.1.1), so existing SARS-CoV2 herd immunity along with recommended booster vaccine uptake should keep the lid on SARS-CoV2.

Influenza Could Be the Bad News

Which type will dominate? Will a drift/shift occur or vaccine-mismatch reduce vaccine effectiveness? Can we get at least half the population influenza vaccinated, given the vaccine fatigue permeating the US population? The influenza season now underway in the Southern Hemisphere usually helps us predict our season. The Australian May-August 2024 experience (still on an upward trajectory for severity in mid-August) saw no drift/shift or vaccine mismatch. However, this 2024 season has been as severe as 2022 (their worst in a decade). That said, more than 95% has been type A (mostly H1N1 but H3N2 increased in July). So, if our overall 2024-2025 respiratory season is not milder, influenza is the most likely culprit. To reduce chances of influenza being the fly-in-the-ointment, we need to be particularly proactive with seasonal influenza vaccine which is back to the traditional trivalent formulation (one H1N1, one H3N2, and one B type).⁸ All of this could go out the window if avian influenza becomes more transmissible, but that seems unlikely at present.

Mild RSV Season?

RSV season should be blunted because of the increased use of both the remarkably effective CDC-recommended maternal RSV vaccine⁹ (one dose during pregnancy weeks 32 through 36, administered September through January) and of nirsevimab (up to 90% reduction in hospitalizations and ED visits).¹⁰ (See Figure 3.)

I also expect residual disease to occur mostly in younger than 18 month-olds (the “normal” aged population experiencing their first winter), who received no passive immunity (mother RSV unvaccinated and child did not receive nirsevimab). Some disease will still occur in high-risk infants/children. However, unlike active vaccination strategies, a competent immune system is not required to benefit from passive antibody, whether transplacental or directly administered.
 

Deep Thought

What if the traditional RSV seasonal hospitalization surge fails to materialize this season? It could happen. If we could get high acceptance/uptake of maternal vaccine and infant nirsevimab, RSV season could resemble the dramatic drop in rotavirus disease the second year after rotavirus vaccine introduction. We could be asking ourselves — “What happened to RSV?”

Dr. Harrison is professor of pediatrics and pediatric infectious diseases at Children’s Mercy Hospitals and Clinics, Kansas City, Missouri. He said he had no relevant financial disclosures. Email him at [email protected].

References

1. CDC. RSV in Infants and Young Children. Respiratory Syncytial Virus Infection (RSV). June 18, 2024. https://www.cdc.gov/rsv/infants-young-children/index.html.

2. Suss RJ and Simões EAF. Respiratory Syncytial Virus Hospital-Based Burden of Disease in Children Younger Than 5 Respiratory Syncytial Virus Hospital-Based Burden of Disease in Children Younger Than 5 Years, 2015-2022. JAMA Netw Open. 2024;7(4):e247125. doi:10.1001/jamanetworkopen.2024.7125.

3. Winthrop ZA et al. Pediatric Respiratory Syncytial Virus Hospitalizations and Respiratory Support After the COVID-19 Pandemic. JAMA Netw Open. 2024;7(6):e2416852. doi:10.1001/jamanetworkopen.2024.16852.

4. Petros BA et al. Increased Pediatric RSV Case Counts Following the Emergence of SARS-CoV-2 Are Attributable to Increased Testing. medRxiv [Preprint]. 2024 Feb 12:2024.02.06.24302387. doi: 10.1101/2024.02.06.24302387.

5. Rates of Laboratory-Confirmed RSV, COVID-19, and Flu Hospitalizations from the RESP-NET Surveillance Systems. Centers for Disease Control and Prevention. https://data.cdc.gov/Public-Health-Surveillance/Rates-of-Laboratory-Confirmed-RSV-COVID-19-and-Flu/kvib-3txy/about_data.

6. CDC. Evaluating the 2023-2024 Respiratory Disease Season Outlook. CFA: Qualitative Assessments. August 14, 2024. https://www.cdc.gov/cfa-qualitative-assessments/php/data-research/2023-2024-season-outlook-retro.html.

7. Health Alert Network (HAN). Limited Availability of Nirsevimab in the United States—Interim CDC Recommendations to Protect Infants from Respiratory Syncytial Virus (RSV) during the 2023–2024 Respiratory Virus Season. October 23, 2023. https://emergency.cdc.gov/han/2023/han00499.asp.

8. CDC. Information for the 2024-2025 Flu Season. Centers for Disease Control and Prevention. March 14, 2024. https://www.cdc.gov/flu/season/faq-flu-season-2024-2025.htm.

9. Kampmann B et al. Bivalent Prefusion F Vaccine in Pregnancy to Prevent RSV Illness in Infants. N Engl J Med. 2023 Apr 20;388(16):1451-1464. doi: 10.1056/NEJMoa2216480.

10. Moline HL. Early Estimate of Nirsevimab Effectiveness for Prevention of Respiratory Syncytial Virus–Associated Hospitalization Among Infants Entering Their First Respiratory Syncytial Virus Season — New Vaccine Surveillance Network, October 2023–February 2024. MMWR Morb Mortal Wkly Rep. 2024;73. doi: 10.15585/mmwr.mm7309a4.

RSV, influenza, and now SARS-CoV2 drive annual winter respiratory surges. For children younger than 5 years old, RSV is the main drive — approximately 2,000,000 outpatient/ED visits and about 75,000 hospitalizations annually. RSV disease ranges from upper respiratory tract infections, eg, in older children and healthy adults, to more severe lower tract disease in young children and the elderly. Premature infants and high-risk groups are particularly prone to severe disease.¹ Up to 300 pediatric RSV deaths occur yearly. “Normal” RSV seasons start in mid-November, peak in late December-January, and end after April. Note: More drawn out seasons occur in southern latitudes, eg Texas or Florida. But lately RSV seasons have been anything but normal.

2015-2016 to 2022-2023

RSV data from the Pediatric Health Information System (PHIS), collected at over 49 US children’s hospitals during 2015 to early 2023, show how crazy RSV seasons have been lately.² The involved months, intensity, and duration of four prepandemic seasons were pretty “normal” (Figure 1). The 2019-2020 season started normally, peaked in January 2020, and was slowing as expected by February. But when SARS-Cov-2 restrictions kicked in during mid-March, RSV detections tanked to almost nothing (ditto other respiratory viruses). A near 14-month RSV hiatus meant that the 2020-2021 RSV season never materialized. However, RSV was not done with us in 2021. It rebounded in May with weekly hospitalizations peaking in late July; this “rebound season” lasted 9 months, not dropping to baseline until February 2022 (Figure 1).

I guess we should have expected a post-pandemic “disturbance in the Force,” as Yoda once said; but I sure didn’t see a prolonged summer/fall/early winter RSV season coming. It was like two “normal” seasons mashed up into one late-but-long season. Not to be outdone, the 2022-2023 RSV season started early (September) and hospitalizations skyrocketed to peak in November at over twice the peak number from any year since 2015, overloading hospitals (influenza and SARS-Cov-2 seasons were co-circulating). The season terminated early though (March 2023).

Okay, so RSV seasonality/intensity were weird post pandemic, but was anything else different? Some 2021-2023 data suggest more RSV disease in older children, rather than the usual younger than 18 month-olds going through their first winter.³ More medically attended RSV in older ages (2-4 years of life) may have been due to the pandemic year without RSV circulation distorting herd immunity, ie older children remained RSV naive. Other data suggest the apparent increase was really just more frequent multiplex viral testing in older children triggered by SARS-CoV-2 co-circulation.⁴ More data are needed to decide.
 

CDC 2023-2024 RESP-NET data

The 2023-2024 winter surge (Figure 2), as measured by RESP-NET’s cumulative RSV,influenza and SARS-CoV-2 hospitalization rates for 0- to 5-year-olds,⁵ shows that all three viruses’ seasonal months were normal-ish: late October 2023 start, late December-early January peak, and mid-May 2024 return to baseline. RSV season was approximately 22% less severe by area-under-the-curve calculations compared with 2022-2023, but still worse than prepandemic years.⁶

One wonders if the 2022-2023 RSV season might have been worse but for use of the limited supply of nirsevimab.⁷

Viral Parade

Now we ready ourselves for the 2024-2025 respiratory surge, wondering what nature has in store for us. Will the usual “respiratory virus parade” occur? Will rhinovirus and parainfluenza prevalence bump after a few weeks of schools being in session, adding to the now-usual summer/fall SARS-CoV-2 surge? Note: Twenty-seven states as of Aug. 16 had high SARS-CoV-2 detection in wastewater. Will RSV and influenza start sometime in October/November, peak in January (along with rising SARS-CoV2 activity), followed by a second parainfluenza bump as SARS-CoV-2, influenza, and RSV drop off in April/May? Further, will RSV and influenza seasons be more or less severe than the last 2 years?

Prediction

The overall 2024-2025 respiratory season will be less severe than the past 2 years and hopefully than recent prepandemic years. What is the blueprint for a milder season? First, herd immunity to non-RSV and non-influenza viruses (parainfluenza, rhinovirus, metapneumovirus, adenovirus) in older children should be normalized after 2 years back to usual social activity. So, I expect no mega-seasons from them. The emerging SARS-CoV-2 virus (LB.1) is immunologically close to its recent still-circulating ancestors (KP.2, KP.2.3, KP.³ and KP.3.1.1), so existing SARS-CoV2 herd immunity along with recommended booster vaccine uptake should keep the lid on SARS-CoV2.

Influenza Could Be the Bad News

Which type will dominate? Will a drift/shift occur or vaccine-mismatch reduce vaccine effectiveness? Can we get at least half the population influenza vaccinated, given the vaccine fatigue permeating the US population? The influenza season now underway in the Southern Hemisphere usually helps us predict our season. The Australian May-August 2024 experience (still on an upward trajectory for severity in mid-August) saw no drift/shift or vaccine mismatch. However, this 2024 season has been as severe as 2022 (their worst in a decade). That said, more than 95% has been type A (mostly H1N1 but H3N2 increased in July). So, if our overall 2024-2025 respiratory season is not milder, influenza is the most likely culprit. To reduce chances of influenza being the fly-in-the-ointment, we need to be particularly proactive with seasonal influenza vaccine which is back to the traditional trivalent formulation (one H1N1, one H3N2, and one B type).⁸ All of this could go out the window if avian influenza becomes more transmissible, but that seems unlikely at present.

Mild RSV Season?

RSV season should be blunted because of the increased use of both the remarkably effective CDC-recommended maternal RSV vaccine⁹ (one dose during pregnancy weeks 32 through 36, administered September through January) and of nirsevimab (up to 90% reduction in hospitalizations and ED visits).¹⁰ (See Figure 3.)

I also expect residual disease to occur mostly in younger than 18 month-olds (the “normal” aged population experiencing their first winter), who received no passive immunity (mother RSV unvaccinated and child did not receive nirsevimab). Some disease will still occur in high-risk infants/children. However, unlike active vaccination strategies, a competent immune system is not required to benefit from passive antibody, whether transplacental or directly administered.
 

Deep Thought

What if the traditional RSV seasonal hospitalization surge fails to materialize this season? It could happen. If we could get high acceptance/uptake of maternal vaccine and infant nirsevimab, RSV season could resemble the dramatic drop in rotavirus disease the second year after rotavirus vaccine introduction. We could be asking ourselves — “What happened to RSV?”

Dr. Harrison is professor of pediatrics and pediatric infectious diseases at Children’s Mercy Hospitals and Clinics, Kansas City, Missouri. He said he had no relevant financial disclosures. Email him at [email protected].

References

1. CDC. RSV in Infants and Young Children. Respiratory Syncytial Virus Infection (RSV). June 18, 2024. https://www.cdc.gov/rsv/infants-young-children/index.html.

2. Suss RJ and Simões EAF. Respiratory Syncytial Virus Hospital-Based Burden of Disease in Children Younger Than 5 Respiratory Syncytial Virus Hospital-Based Burden of Disease in Children Younger Than 5 Years, 2015-2022. JAMA Netw Open. 2024;7(4):e247125. doi:10.1001/jamanetworkopen.2024.7125.

3. Winthrop ZA et al. Pediatric Respiratory Syncytial Virus Hospitalizations and Respiratory Support After the COVID-19 Pandemic. JAMA Netw Open. 2024;7(6):e2416852. doi:10.1001/jamanetworkopen.2024.16852.

4. Petros BA et al. Increased Pediatric RSV Case Counts Following the Emergence of SARS-CoV-2 Are Attributable to Increased Testing. medRxiv [Preprint]. 2024 Feb 12:2024.02.06.24302387. doi: 10.1101/2024.02.06.24302387.

5. Rates of Laboratory-Confirmed RSV, COVID-19, and Flu Hospitalizations from the RESP-NET Surveillance Systems. Centers for Disease Control and Prevention. https://data.cdc.gov/Public-Health-Surveillance/Rates-of-Laboratory-Confirmed-RSV-COVID-19-and-Flu/kvib-3txy/about_data.

6. CDC. Evaluating the 2023-2024 Respiratory Disease Season Outlook. CFA: Qualitative Assessments. August 14, 2024. https://www.cdc.gov/cfa-qualitative-assessments/php/data-research/2023-2024-season-outlook-retro.html.

7. Health Alert Network (HAN). Limited Availability of Nirsevimab in the United States—Interim CDC Recommendations to Protect Infants from Respiratory Syncytial Virus (RSV) during the 2023–2024 Respiratory Virus Season. October 23, 2023. https://emergency.cdc.gov/han/2023/han00499.asp.

8. CDC. Information for the 2024-2025 Flu Season. Centers for Disease Control and Prevention. March 14, 2024. https://www.cdc.gov/flu/season/faq-flu-season-2024-2025.htm.

9. Kampmann B et al. Bivalent Prefusion F Vaccine in Pregnancy to Prevent RSV Illness in Infants. N Engl J Med. 2023 Apr 20;388(16):1451-1464. doi: 10.1056/NEJMoa2216480.

10. Moline HL. Early Estimate of Nirsevimab Effectiveness for Prevention of Respiratory Syncytial Virus–Associated Hospitalization Among Infants Entering Their First Respiratory Syncytial Virus Season — New Vaccine Surveillance Network, October 2023–February 2024. MMWR Morb Mortal Wkly Rep. 2024;73. doi: 10.15585/mmwr.mm7309a4.

Like many diseases, whooping cough reached record low levels during the early days of the COVID pandemic. Also known as pertussis, it’s back with a vengeance and could even threaten people who are vaccinated against the disease, since protection fades over time.

More than 10,000 cases of whooping cough have been reported in the United States so far this year, and weekly reports say cases have more than tripled 2023 levels as of June, according to the Centers for Disease Control and Prevention (CDC). In 2023, there were 2815 cases reported during the entire year.

“The number of reported cases this year is close to what was seen at the same time in 2019, prior to the pandemic,” the CDC reported. There were 18,617 cases of whooping cough in 2019.

There were 259 cases reported nationwide for the week ending Aug. 3, with nearly half occurring in the mid-Atlantic region. Public health officials believe the resurgence of whooping cough is likely due to declining vaccination rates, mainly due to the missed vaccines during the height of the COVID pandemic. The diphtheria, tetanus, and pertussis vaccines (DTaP) have been given together since the 1940s, typically during infancy and again during early childhood. In 1941, there were more than 220,000 cases of whooping cough.

Whooping cough is caused by the bacteria Bordetella pertussis. The bacteria attach to tiny, hair-like extensions in the upper respiratory system called cilia, and toxins released by them damage the cilia and cause airways to swell. Early symptoms are similar to the common cold, but the condition eventually leads to coughing fits and a high-pitched “whoop” sound made when inhaling after a fit subsides. Coughing fits can be so severe that people can fracture a rib.

Vaccinated people may get a less severe illness, compared to unvaccinated people, the CDC says. Babies and children are particularly at risk for severe and even potentially deadly complications. About one in three babies under age 1 who get whooping cough will need to be hospitalized, and among those hospitalized babies, 1 in 100 die from complications.
 

A version of this article appeared on WebMD.com.

Like many diseases, whooping cough reached record low levels during the early days of the COVID pandemic. Also known as pertussis, it’s back with a vengeance and could even threaten people who are vaccinated against the disease, since protection fades over time.

More than 10,000 cases of whooping cough have been reported in the United States so far this year, and weekly reports say cases have more than tripled 2023 levels as of June, according to the Centers for Disease Control and Prevention (CDC). In 2023, there were 2815 cases reported during the entire year.

“The number of reported cases this year is close to what was seen at the same time in 2019, prior to the pandemic,” the CDC reported. There were 18,617 cases of whooping cough in 2019.

There were 259 cases reported nationwide for the week ending Aug. 3, with nearly half occurring in the mid-Atlantic region. Public health officials believe the resurgence of whooping cough is likely due to declining vaccination rates, mainly due to the missed vaccines during the height of the COVID pandemic. The diphtheria, tetanus, and pertussis vaccines (DTaP) have been given together since the 1940s, typically during infancy and again during early childhood. In 1941, there were more than 220,000 cases of whooping cough.

Whooping cough is caused by the bacteria Bordetella pertussis. The bacteria attach to tiny, hair-like extensions in the upper respiratory system called cilia, and toxins released by them damage the cilia and cause airways to swell. Early symptoms are similar to the common cold, but the condition eventually leads to coughing fits and a high-pitched “whoop” sound made when inhaling after a fit subsides. Coughing fits can be so severe that people can fracture a rib.

Vaccinated people may get a less severe illness, compared to unvaccinated people, the CDC says. Babies and children are particularly at risk for severe and even potentially deadly complications. About one in three babies under age 1 who get whooping cough will need to be hospitalized, and among those hospitalized babies, 1 in 100 die from complications.
 

A version of this article appeared on WebMD.com.

Like many diseases, whooping cough reached record low levels during the early days of the COVID pandemic. Also known as pertussis, it’s back with a vengeance and could even threaten people who are vaccinated against the disease, since protection fades over time.

More than 10,000 cases of whooping cough have been reported in the United States so far this year, and weekly reports say cases have more than tripled 2023 levels as of June, according to the Centers for Disease Control and Prevention (CDC). In 2023, there were 2815 cases reported during the entire year.

“The number of reported cases this year is close to what was seen at the same time in 2019, prior to the pandemic,” the CDC reported. There were 18,617 cases of whooping cough in 2019.

There were 259 cases reported nationwide for the week ending Aug. 3, with nearly half occurring in the mid-Atlantic region. Public health officials believe the resurgence of whooping cough is likely due to declining vaccination rates, mainly due to the missed vaccines during the height of the COVID pandemic. The diphtheria, tetanus, and pertussis vaccines (DTaP) have been given together since the 1940s, typically during infancy and again during early childhood. In 1941, there were more than 220,000 cases of whooping cough.

Whooping cough is caused by the bacteria Bordetella pertussis. The bacteria attach to tiny, hair-like extensions in the upper respiratory system called cilia, and toxins released by them damage the cilia and cause airways to swell. Early symptoms are similar to the common cold, but the condition eventually leads to coughing fits and a high-pitched “whoop” sound made when inhaling after a fit subsides. Coughing fits can be so severe that people can fracture a rib.

Vaccinated people may get a less severe illness, compared to unvaccinated people, the CDC says. Babies and children are particularly at risk for severe and even potentially deadly complications. About one in three babies under age 1 who get whooping cough will need to be hospitalized, and among those hospitalized babies, 1 in 100 die from complications.
 

A version of this article appeared on WebMD.com.

We are quickly approaching the typical cold and flu season. But can we call anything typical since 2020? Since 2020, there have been different recommendations for prevention, testing, return to work, and treatment since our world was rocked by the pandemic. Now that we are in the “post-pandemic” era, family physicians and other primary care professionals are the front line for discussions on prevention, evaluation, and treatment of the typical upper-respiratory infections, influenza, and COVID-19.

Let’s start with prevention. We have all heard the old adage, an ounce of prevention is worth a pound of cure. In primary care, we need to focus on prevention. Vaccination is often one of our best tools against the myriad of infections we are hoping to help patients prevent during cold and flu season. Most recently, we have fall vaccinations aimed to prevent COVID-19, influenza, and respiratory syncytial virus (RSV).

The number and timing of each of these vaccinations has different recommendations based on a variety of factors including age, pregnancy status, and whether or not the patient is immunocompromised. For the 2024-2025 season, the Centers for Disease Control and Prevention has recommended updated vaccines for both influenza and COVID-19.¹

They have also updated the RSV vaccine recommendations to “People 75 or older, or between 60-74 with certain chronic health conditions or living in a nursing home should get one dose of the RSV vaccine to provide an extra layer of protection.”²

In addition to vaccines as prevention, there is also hygiene, staying home when sick and away from others who are sick, following guidelines for where and when to wear a face mask, and the general tools of eating well, and getting sufficient sleep and exercise to help maintain the healthiest immune system.

Despite the best of intentions, there will still be many who experience viral infections in this upcoming season. The CDC is currently recommending persons to stay away from others for at least 24 hours after their symptoms improve and they are fever-free without antipyretics. In addition to isolation while sick, general symptom management is something that we can recommend for all of these illnesses.

There is more to consider, though, as our patients face these illnesses. The first question is how to determine the diagnosis — and if that diagnosis is even necessary. Unfortunately, many of these viral illnesses can look the same. They can all cause fevers, chills, and other upper respiratory symptoms. They are all fairly contagious. All of these viruses can cause serious illness associated with additional complications. It is not truly possible to determine which virus someone has by symptoms alone, our patients can have multiple viruses at the same time and diagnosis of one does not preclude having another.³

Instead, we truly do need a test for diagnosis. In-office testing is available for RSV, influenza, and COVID-19. Additionally, despite not being as freely available as they were during the pandemic, patients are able to do home COVID tests and then call in with their results. At the time of writing this, at-home rapid influenza tests have also been approved by the FDA but are not yet readily available to the public. These tests are important for determining if the patient is eligible for treatment. Both influenza and COVID-19 have antiviral treatments available to help decrease the severity of the illness and potentially the length of illness and time contagious. According to the CDC, both treatments are underutilized.

This could be because of a lack of testing and diagnosis. It may also be because of a lack of familiarity with the available treatments.^4,5

Influenza treatment is recommended as soon as possible for those with suspected or confirmed diagnosis, immediately for anyone hospitalized, anyone with severe, complicated, or progressing illness, and for those at high risk of severe illness including but not limited to those under 2 years old, those over 65, those who are pregnant, and those with many chronic conditions.

Treatment can also be used for those who are not high risk when diagnosed within 48 hours. In the United States, four antivirals are recommended to treat influenza: oseltamivir phosphate, zanamivir, peramivir, and baloxavir marboxil. For COVID-19, treatments are also available for mild or moderate disease in those at risk for severe disease. Both remdesivir and nimatrelvir with ritonavir are treatment options that can be used for COVID-19 infection. Unfortunately, no specific antiviral is available for the other viral illnesses we see often during this season.

In primary care, we have some important roles to play. We need to continue to discuss all methods of prevention. Not only do vaccine recommendations change at least annually, our patients’ situations change and we have to reassess them. Additionally, people often need to hear things more than once before committing — so it never hurts to continue having those conversations. Combining the conversation about vaccines with other prevention measures is also important so that it does not seem like we are only recommending one thing. We should also start talking about treatment options before our patients are sick. We can communicate what is available as long as they let us know they are sick early. We can also be there to help our patients determine when they are at risk for severe illness and when they should consider a higher level of care.

The availability of home testing gives us the opportunity to provide these treatments via telehealth and even potentially in times when these illnesses are everywhere — with standing orders with our clinical teams. Although it is a busy time for us in the clinic, “cold and flu” season is definitely one of those times when our primary care relationship can truly help our patients.
 

References

1. CDC Recommends Updated 2024-2025 COVID-19 and Flu Vaccines for Fall/Winter Virus Season. https://www.cdc.gov/media/releases/2024/s-t0627-vaccine-recommendations.html. Accessed August 8, 2024. Source: Centers for Disease Control and Prevention.

2. CDC Updates RSV Vaccination Recommendation for Adults. https://www.cdc.gov/media/releases/2024/s-0626-vaccination-adults.html. Accessed August 8, 2024. Source: Centers for Disease Control and Prevention.

3. Similarities and Differences between Flu and COVID-19. https://www.cdc.gov/flu/symptoms/flu-vs-covid19.htm. Accessed August 8, 2024. Source: Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases.

4. Respiratory Virus Guidance. https://www.cdc.gov/respiratory-viruses/guidance/index.html. Accessed August 9, 2024. Source: National Center for Immunization and Respiratory Diseases.

5. Provider Toolkit: Preparing Patients for the Fall and Winter Virus Season. https://www.cdc.gov/respiratory-viruses/hcp/tools-resources/index.html. Accessed August 9, 2024. Source: Centers for Disease Control and Prevention.

We are quickly approaching the typical cold and flu season. But can we call anything typical since 2020? Since 2020, there have been different recommendations for prevention, testing, return to work, and treatment since our world was rocked by the pandemic. Now that we are in the “post-pandemic” era, family physicians and other primary care professionals are the front line for discussions on prevention, evaluation, and treatment of the typical upper-respiratory infections, influenza, and COVID-19.

Let’s start with prevention. We have all heard the old adage, an ounce of prevention is worth a pound of cure. In primary care, we need to focus on prevention. Vaccination is often one of our best tools against the myriad of infections we are hoping to help patients prevent during cold and flu season. Most recently, we have fall vaccinations aimed to prevent COVID-19, influenza, and respiratory syncytial virus (RSV).

The number and timing of each of these vaccinations has different recommendations based on a variety of factors including age, pregnancy status, and whether or not the patient is immunocompromised. For the 2024-2025 season, the Centers for Disease Control and Prevention has recommended updated vaccines for both influenza and COVID-19.¹

They have also updated the RSV vaccine recommendations to “People 75 or older, or between 60-74 with certain chronic health conditions or living in a nursing home should get one dose of the RSV vaccine to provide an extra layer of protection.”²

In addition to vaccines as prevention, there is also hygiene, staying home when sick and away from others who are sick, following guidelines for where and when to wear a face mask, and the general tools of eating well, and getting sufficient sleep and exercise to help maintain the healthiest immune system.

Despite the best of intentions, there will still be many who experience viral infections in this upcoming season. The CDC is currently recommending persons to stay away from others for at least 24 hours after their symptoms improve and they are fever-free without antipyretics. In addition to isolation while sick, general symptom management is something that we can recommend for all of these illnesses.

There is more to consider, though, as our patients face these illnesses. The first question is how to determine the diagnosis — and if that diagnosis is even necessary. Unfortunately, many of these viral illnesses can look the same. They can all cause fevers, chills, and other upper respiratory symptoms. They are all fairly contagious. All of these viruses can cause serious illness associated with additional complications. It is not truly possible to determine which virus someone has by symptoms alone, our patients can have multiple viruses at the same time and diagnosis of one does not preclude having another.³

Instead, we truly do need a test for diagnosis. In-office testing is available for RSV, influenza, and COVID-19. Additionally, despite not being as freely available as they were during the pandemic, patients are able to do home COVID tests and then call in with their results. At the time of writing this, at-home rapid influenza tests have also been approved by the FDA but are not yet readily available to the public. These tests are important for determining if the patient is eligible for treatment. Both influenza and COVID-19 have antiviral treatments available to help decrease the severity of the illness and potentially the length of illness and time contagious. According to the CDC, both treatments are underutilized.

This could be because of a lack of testing and diagnosis. It may also be because of a lack of familiarity with the available treatments.^4,5

Influenza treatment is recommended as soon as possible for those with suspected or confirmed diagnosis, immediately for anyone hospitalized, anyone with severe, complicated, or progressing illness, and for those at high risk of severe illness including but not limited to those under 2 years old, those over 65, those who are pregnant, and those with many chronic conditions.

Treatment can also be used for those who are not high risk when diagnosed within 48 hours. In the United States, four antivirals are recommended to treat influenza: oseltamivir phosphate, zanamivir, peramivir, and baloxavir marboxil. For COVID-19, treatments are also available for mild or moderate disease in those at risk for severe disease. Both remdesivir and nimatrelvir with ritonavir are treatment options that can be used for COVID-19 infection. Unfortunately, no specific antiviral is available for the other viral illnesses we see often during this season.

In primary care, we have some important roles to play. We need to continue to discuss all methods of prevention. Not only do vaccine recommendations change at least annually, our patients’ situations change and we have to reassess them. Additionally, people often need to hear things more than once before committing — so it never hurts to continue having those conversations. Combining the conversation about vaccines with other prevention measures is also important so that it does not seem like we are only recommending one thing. We should also start talking about treatment options before our patients are sick. We can communicate what is available as long as they let us know they are sick early. We can also be there to help our patients determine when they are at risk for severe illness and when they should consider a higher level of care.

The availability of home testing gives us the opportunity to provide these treatments via telehealth and even potentially in times when these illnesses are everywhere — with standing orders with our clinical teams. Although it is a busy time for us in the clinic, “cold and flu” season is definitely one of those times when our primary care relationship can truly help our patients.
 

References

1. CDC Recommends Updated 2024-2025 COVID-19 and Flu Vaccines for Fall/Winter Virus Season. https://www.cdc.gov/media/releases/2024/s-t0627-vaccine-recommendations.html. Accessed August 8, 2024. Source: Centers for Disease Control and Prevention.

2. CDC Updates RSV Vaccination Recommendation for Adults. https://www.cdc.gov/media/releases/2024/s-0626-vaccination-adults.html. Accessed August 8, 2024. Source: Centers for Disease Control and Prevention.

3. Similarities and Differences between Flu and COVID-19. https://www.cdc.gov/flu/symptoms/flu-vs-covid19.htm. Accessed August 8, 2024. Source: Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases.

4. Respiratory Virus Guidance. https://www.cdc.gov/respiratory-viruses/guidance/index.html. Accessed August 9, 2024. Source: National Center for Immunization and Respiratory Diseases.

5. Provider Toolkit: Preparing Patients for the Fall and Winter Virus Season. https://www.cdc.gov/respiratory-viruses/hcp/tools-resources/index.html. Accessed August 9, 2024. Source: Centers for Disease Control and Prevention.

We are quickly approaching the typical cold and flu season. But can we call anything typical since 2020? Since 2020, there have been different recommendations for prevention, testing, return to work, and treatment since our world was rocked by the pandemic. Now that we are in the “post-pandemic” era, family physicians and other primary care professionals are the front line for discussions on prevention, evaluation, and treatment of the typical upper-respiratory infections, influenza, and COVID-19.

Let’s start with prevention. We have all heard the old adage, an ounce of prevention is worth a pound of cure. In primary care, we need to focus on prevention. Vaccination is often one of our best tools against the myriad of infections we are hoping to help patients prevent during cold and flu season. Most recently, we have fall vaccinations aimed to prevent COVID-19, influenza, and respiratory syncytial virus (RSV).

The number and timing of each of these vaccinations has different recommendations based on a variety of factors including age, pregnancy status, and whether or not the patient is immunocompromised. For the 2024-2025 season, the Centers for Disease Control and Prevention has recommended updated vaccines for both influenza and COVID-19.¹

They have also updated the RSV vaccine recommendations to “People 75 or older, or between 60-74 with certain chronic health conditions or living in a nursing home should get one dose of the RSV vaccine to provide an extra layer of protection.”²

In addition to vaccines as prevention, there is also hygiene, staying home when sick and away from others who are sick, following guidelines for where and when to wear a face mask, and the general tools of eating well, and getting sufficient sleep and exercise to help maintain the healthiest immune system.

Despite the best of intentions, there will still be many who experience viral infections in this upcoming season. The CDC is currently recommending persons to stay away from others for at least 24 hours after their symptoms improve and they are fever-free without antipyretics. In addition to isolation while sick, general symptom management is something that we can recommend for all of these illnesses.

There is more to consider, though, as our patients face these illnesses. The first question is how to determine the diagnosis — and if that diagnosis is even necessary. Unfortunately, many of these viral illnesses can look the same. They can all cause fevers, chills, and other upper respiratory symptoms. They are all fairly contagious. All of these viruses can cause serious illness associated with additional complications. It is not truly possible to determine which virus someone has by symptoms alone, our patients can have multiple viruses at the same time and diagnosis of one does not preclude having another.³

Instead, we truly do need a test for diagnosis. In-office testing is available for RSV, influenza, and COVID-19. Additionally, despite not being as freely available as they were during the pandemic, patients are able to do home COVID tests and then call in with their results. At the time of writing this, at-home rapid influenza tests have also been approved by the FDA but are not yet readily available to the public. These tests are important for determining if the patient is eligible for treatment. Both influenza and COVID-19 have antiviral treatments available to help decrease the severity of the illness and potentially the length of illness and time contagious. According to the CDC, both treatments are underutilized.

This could be because of a lack of testing and diagnosis. It may also be because of a lack of familiarity with the available treatments.^4,5

Influenza treatment is recommended as soon as possible for those with suspected or confirmed diagnosis, immediately for anyone hospitalized, anyone with severe, complicated, or progressing illness, and for those at high risk of severe illness including but not limited to those under 2 years old, those over 65, those who are pregnant, and those with many chronic conditions.

Treatment can also be used for those who are not high risk when diagnosed within 48 hours. In the United States, four antivirals are recommended to treat influenza: oseltamivir phosphate, zanamivir, peramivir, and baloxavir marboxil. For COVID-19, treatments are also available for mild or moderate disease in those at risk for severe disease. Both remdesivir and nimatrelvir with ritonavir are treatment options that can be used for COVID-19 infection. Unfortunately, no specific antiviral is available for the other viral illnesses we see often during this season.

In primary care, we have some important roles to play. We need to continue to discuss all methods of prevention. Not only do vaccine recommendations change at least annually, our patients’ situations change and we have to reassess them. Additionally, people often need to hear things more than once before committing — so it never hurts to continue having those conversations. Combining the conversation about vaccines with other prevention measures is also important so that it does not seem like we are only recommending one thing. We should also start talking about treatment options before our patients are sick. We can communicate what is available as long as they let us know they are sick early. We can also be there to help our patients determine when they are at risk for severe illness and when they should consider a higher level of care.

The availability of home testing gives us the opportunity to provide these treatments via telehealth and even potentially in times when these illnesses are everywhere — with standing orders with our clinical teams. Although it is a busy time for us in the clinic, “cold and flu” season is definitely one of those times when our primary care relationship can truly help our patients.
 

References

1. CDC Recommends Updated 2024-2025 COVID-19 and Flu Vaccines for Fall/Winter Virus Season. https://www.cdc.gov/media/releases/2024/s-t0627-vaccine-recommendations.html. Accessed August 8, 2024. Source: Centers for Disease Control and Prevention.

2. CDC Updates RSV Vaccination Recommendation for Adults. https://www.cdc.gov/media/releases/2024/s-0626-vaccination-adults.html. Accessed August 8, 2024. Source: Centers for Disease Control and Prevention.

3. Similarities and Differences between Flu and COVID-19. https://www.cdc.gov/flu/symptoms/flu-vs-covid19.htm. Accessed August 8, 2024. Source: Centers for Disease Control and Prevention, National Center for Immunization and Respiratory Diseases.

4. Respiratory Virus Guidance. https://www.cdc.gov/respiratory-viruses/guidance/index.html. Accessed August 9, 2024. Source: National Center for Immunization and Respiratory Diseases.

5. Provider Toolkit: Preparing Patients for the Fall and Winter Virus Season. https://www.cdc.gov/respiratory-viruses/hcp/tools-resources/index.html. Accessed August 9, 2024. Source: Centers for Disease Control and Prevention.

Receipt of a newer recombinant version of a shingles vaccine is associated with a significant delay in dementia diagnosis in older adults, a new study suggests.

The study builds on previous observations of a reduction in dementia risk with the older live shingles vaccine and reports a delay in dementia diagnosis of 164 days with the newer recombinant version, compared with the live vaccine. 

“Given the prevalence of dementia, a delay of 164 days in diagnosis would not be a trivial effect at the public health level. It’s a big enough effect that if there is a causality it feels meaningful,” said senior author Paul Harrison, DM, FRCPsych, professor of psychiatry at the University of Oxford, Oxford, England. 

But Dr. Harrison stressed that the study had not proven that the shingles vaccine reduced dementia risk. 

“The design of the study allows us to do away with many of the confounding effects we usually see in observational studies, but this is still an observational study, and as such it cannot prove a definite causal effect,” he said. 

The study was published online on July 25 in Nature Medicine.
 

‘Natural Experiment’

Given the risk for deleterious consequences of shingles, vaccination is now recommended for older adults in many countries. The previously used live shingles vaccine (Zostavax) is being replaced in most countries with the new recombinant shingles vaccine (Shingrix), which is more effective at preventing shingles infection. 

The current study made use of a “natural experiment” in the United States, which switched over from use of the live vaccine to the recombinant vaccine in October 2017. 

Researchers used electronic heath records to compare the incidence of a dementia diagnosis in individuals who received the live shingles vaccine prior to October 2017 with those who received the recombinant version after the United States made the switch. 

They also used propensity score matching to further control for confounding factors, comparing 103,837 individuals who received a first dose of the live shingles vaccine between October 2014 and September 2017 with the same number of matched people who received the recombinant vaccine between November 2017 and October 2020. 

Results showed that within the 6 years after vaccination, the recombinant vaccine was associated with a delay in the diagnosis of dementia, compared with the live vaccine. Specifically, receiving the recombinant vaccine was associated with a 17% increase in diagnosis-free time, translating to 164 additional days lived without a diagnosis of dementia in those subsequently affected. 

As an additional control, the researchers also found significantly lower risks for dementia in individuals receiving the new recombinant shingles vaccine vs two other vaccines commonly used in older people: influenza and tetanus/diphtheria/pertussis vaccines, with increases in diagnosis-free time of 14%-27%. 

Reduced Risk or Delayed Diagnosis?

Speaking at a Science Media Centre press conference on the study, lead author Maxime Taquet, PhD, FRCPsych, clinical lecturer in psychiatry at the University of Oxford, noted that the total number of dementia cases were similar in the two shingles vaccine groups by the end of the 6-year follow-up period but there was a difference in the time at which they received a diagnosis of dementia.

“The study suggests that rather than actually reducing dementia risk, the recombinant vaccine delays the onset of dementia compared to the live vaccine in patients who go on to develop the condition,” he explained. 

But when comparing the recombinant vaccine with the influenza and tetanus/diphtheria/pertussis vaccines there was a clear reduction in dementia risk itself, Dr. Taquet reported. 

“It might well be that the live vaccine has a potential effect on the risk of dementia itself and therefore the recombinant vaccine only shows a delay in dementia compared to the live vaccine, but both of them might decrease the overall risk of dementia,” he suggested. 

But the researchers cautioned that this study could not prove causality. 

“While the two groups were very carefully matched in terms of factors that might influence the development of dementia, we still have to be cautious before assuming that the vaccine is indeed causally reducing the risk of onset of dementia,” Dr. Harrison warned. 

The researchers say the results would need to be confirmed in a randomized trial, which may have to be conducted in a slightly younger age group, as currently shingles vaccine is recommended for all older individuals in the United Kingdom. 

Vaccine recommendations vary from country to country, Dr. Harrison added. In the United States, the Centers for Disease Control and Prevention recommends the recombinant shingles vaccine for all adults aged 50 years or older. 

In the meantime, it would be interesting to see whether further observational studies in other countries find similar results as this US study, Dr. Harrison said.  
 

Mechanism Uncertain

Speculating on a possible mechanism behind the findings, Dr. Harrison suggested two plausible explanations.

“First, it is thought that the herpes virus could be one of many factors that could promote dementia, so a vaccine that stops reactivation of this virus might therefore be delaying that process,” he noted. 

The other possibility is that adjuvants included in the recombinant vaccine to stimulate the immune system might have played a role. 

“We don’t have any data on the mechanism, and thus study did not address that, so further studies are needed to look into this,” Dr. Harrison said. 
 

Stronger Effect in Women

Another intriguing finding is that the association with the recombinant vaccine and delayed dementia diagnosis seemed to be stronger in women vs men. 

In the original study of the live shingles vaccine, a protective effect against dementia was shown only in women. 

In the current study, the delay in dementia diagnosis was seen in both sexes but was stronger in women, showing a 22% increased time without dementia in women versus a 13% increased time in men with the recombinant versus the live vaccine. 

As expected, the recombinant vaccine was associated with a lower risk for shingles disease vs the live vaccine (2.5% versus 3.5%), but women did not have a better response than men did in this respect. 

“The better protection against shingles with the recombinant vaccine was similar in men and women, an observation that might be one reason to question the possible mechanism behind the dementia effect being better suppression of the herpes zoster virus by the recombinant vaccine,” Dr. Harrison commented. 

Though these findings are not likely to lead to any immediate changes in policy regarding the shingles vaccine, Dr. Harrison said it would be interesting to see whether uptake of the vaccine increased after this study. 

He estimated that, currently in the United Kingdom, about 60% of older adults choose to have the shingles vaccine. A 2020 study in the United States found that only about one-third of US adults over 60 had received the vaccine. 

“It will be interesting to see if that figure increases after these data are publicized, but I am not recommending that people have the vaccine specifically to lower their risk of dementia because of the caveats about the study that we have discussed,” he commented. 
 

Outside Experts Positive 

Outside experts, providing comment to the Science Media Centre, welcomed the new research. 

“ The study is very well-conducted and adds to previous data indicating that vaccination against shingles is associated with lower dementia risk. More research is needed in future to determine why this vaccine is associated with lower dementia risk,” said Tara Spires-Jones, FMedSci, president of the British Neuroscience Association. 

The high number of patients in the study and the adjustments for potential confounders are also strong points, noted Andrew Doig, PhD, professor of biochemistry, University of Manchester, Manchester, England.

“This is a significant result, comparable in effectiveness to the recent antibody drugs for Alzheimer’s disease,” Dr. Doig said. “Administering the recombinant shingles vaccine could well be a simple and cheap way to lower the risk of Alzheimer’s disease.”

Dr. Doig noted that a link between herpes zoster infection and the onset of dementia has been suspected for some time, and a trial of the antiviral drug valacyclovir against Alzheimer’s disease is currently underway.

In regard to the shingles vaccine, he said a placebo-controlled trial would be needed to prove causality. 

“We also need to see how many years the effect might last and whether we should vaccinate people at a younger age. We know that the path to Alzheimer’s can start decades before any symptoms are apparent, so the vaccine might be even more effective if given to people in their 40s or 50s,” he said.

Dr. Harrison and Dr. Taquet reported no disclosures. Dr. Doig is a founder, director, and consultant for PharmaKure, which works on Alzheimer’s drugs and diagnostics. Other commentators declared no disclosures.

A version of this article first appeared on Medscape.com.

Receipt of a newer recombinant version of a shingles vaccine is associated with a significant delay in dementia diagnosis in older adults, a new study suggests.

The study builds on previous observations of a reduction in dementia risk with the older live shingles vaccine and reports a delay in dementia diagnosis of 164 days with the newer recombinant version, compared with the live vaccine. 

“Given the prevalence of dementia, a delay of 164 days in diagnosis would not be a trivial effect at the public health level. It’s a big enough effect that if there is a causality it feels meaningful,” said senior author Paul Harrison, DM, FRCPsych, professor of psychiatry at the University of Oxford, Oxford, England. 

But Dr. Harrison stressed that the study had not proven that the shingles vaccine reduced dementia risk. 

“The design of the study allows us to do away with many of the confounding effects we usually see in observational studies, but this is still an observational study, and as such it cannot prove a definite causal effect,” he said. 

The study was published online on July 25 in Nature Medicine.
 

‘Natural Experiment’

Given the risk for deleterious consequences of shingles, vaccination is now recommended for older adults in many countries. The previously used live shingles vaccine (Zostavax) is being replaced in most countries with the new recombinant shingles vaccine (Shingrix), which is more effective at preventing shingles infection. 

The current study made use of a “natural experiment” in the United States, which switched over from use of the live vaccine to the recombinant vaccine in October 2017. 

Researchers used electronic heath records to compare the incidence of a dementia diagnosis in individuals who received the live shingles vaccine prior to October 2017 with those who received the recombinant version after the United States made the switch. 

They also used propensity score matching to further control for confounding factors, comparing 103,837 individuals who received a first dose of the live shingles vaccine between October 2014 and September 2017 with the same number of matched people who received the recombinant vaccine between November 2017 and October 2020. 

Results showed that within the 6 years after vaccination, the recombinant vaccine was associated with a delay in the diagnosis of dementia, compared with the live vaccine. Specifically, receiving the recombinant vaccine was associated with a 17% increase in diagnosis-free time, translating to 164 additional days lived without a diagnosis of dementia in those subsequently affected. 

As an additional control, the researchers also found significantly lower risks for dementia in individuals receiving the new recombinant shingles vaccine vs two other vaccines commonly used in older people: influenza and tetanus/diphtheria/pertussis vaccines, with increases in diagnosis-free time of 14%-27%. 

Reduced Risk or Delayed Diagnosis?

Speaking at a Science Media Centre press conference on the study, lead author Maxime Taquet, PhD, FRCPsych, clinical lecturer in psychiatry at the University of Oxford, noted that the total number of dementia cases were similar in the two shingles vaccine groups by the end of the 6-year follow-up period but there was a difference in the time at which they received a diagnosis of dementia.

“The study suggests that rather than actually reducing dementia risk, the recombinant vaccine delays the onset of dementia compared to the live vaccine in patients who go on to develop the condition,” he explained. 

But when comparing the recombinant vaccine with the influenza and tetanus/diphtheria/pertussis vaccines there was a clear reduction in dementia risk itself, Dr. Taquet reported. 

“It might well be that the live vaccine has a potential effect on the risk of dementia itself and therefore the recombinant vaccine only shows a delay in dementia compared to the live vaccine, but both of them might decrease the overall risk of dementia,” he suggested. 

But the researchers cautioned that this study could not prove causality. 

“While the two groups were very carefully matched in terms of factors that might influence the development of dementia, we still have to be cautious before assuming that the vaccine is indeed causally reducing the risk of onset of dementia,” Dr. Harrison warned. 

The researchers say the results would need to be confirmed in a randomized trial, which may have to be conducted in a slightly younger age group, as currently shingles vaccine is recommended for all older individuals in the United Kingdom. 

Vaccine recommendations vary from country to country, Dr. Harrison added. In the United States, the Centers for Disease Control and Prevention recommends the recombinant shingles vaccine for all adults aged 50 years or older. 

In the meantime, it would be interesting to see whether further observational studies in other countries find similar results as this US study, Dr. Harrison said.  
 

Mechanism Uncertain

Speculating on a possible mechanism behind the findings, Dr. Harrison suggested two plausible explanations.

“First, it is thought that the herpes virus could be one of many factors that could promote dementia, so a vaccine that stops reactivation of this virus might therefore be delaying that process,” he noted. 

The other possibility is that adjuvants included in the recombinant vaccine to stimulate the immune system might have played a role. 

“We don’t have any data on the mechanism, and thus study did not address that, so further studies are needed to look into this,” Dr. Harrison said. 
 

Stronger Effect in Women

Another intriguing finding is that the association with the recombinant vaccine and delayed dementia diagnosis seemed to be stronger in women vs men. 

In the original study of the live shingles vaccine, a protective effect against dementia was shown only in women. 

In the current study, the delay in dementia diagnosis was seen in both sexes but was stronger in women, showing a 22% increased time without dementia in women versus a 13% increased time in men with the recombinant versus the live vaccine. 

As expected, the recombinant vaccine was associated with a lower risk for shingles disease vs the live vaccine (2.5% versus 3.5%), but women did not have a better response than men did in this respect. 

“The better protection against shingles with the recombinant vaccine was similar in men and women, an observation that might be one reason to question the possible mechanism behind the dementia effect being better suppression of the herpes zoster virus by the recombinant vaccine,” Dr. Harrison commented. 

Though these findings are not likely to lead to any immediate changes in policy regarding the shingles vaccine, Dr. Harrison said it would be interesting to see whether uptake of the vaccine increased after this study. 

He estimated that, currently in the United Kingdom, about 60% of older adults choose to have the shingles vaccine. A 2020 study in the United States found that only about one-third of US adults over 60 had received the vaccine. 

“It will be interesting to see if that figure increases after these data are publicized, but I am not recommending that people have the vaccine specifically to lower their risk of dementia because of the caveats about the study that we have discussed,” he commented. 
 

Outside Experts Positive 

Outside experts, providing comment to the Science Media Centre, welcomed the new research. 

“ The study is very well-conducted and adds to previous data indicating that vaccination against shingles is associated with lower dementia risk. More research is needed in future to determine why this vaccine is associated with lower dementia risk,” said Tara Spires-Jones, FMedSci, president of the British Neuroscience Association. 

The high number of patients in the study and the adjustments for potential confounders are also strong points, noted Andrew Doig, PhD, professor of biochemistry, University of Manchester, Manchester, England.

“This is a significant result, comparable in effectiveness to the recent antibody drugs for Alzheimer’s disease,” Dr. Doig said. “Administering the recombinant shingles vaccine could well be a simple and cheap way to lower the risk of Alzheimer’s disease.”

Dr. Doig noted that a link between herpes zoster infection and the onset of dementia has been suspected for some time, and a trial of the antiviral drug valacyclovir against Alzheimer’s disease is currently underway.

In regard to the shingles vaccine, he said a placebo-controlled trial would be needed to prove causality. 

“We also need to see how many years the effect might last and whether we should vaccinate people at a younger age. We know that the path to Alzheimer’s can start decades before any symptoms are apparent, so the vaccine might be even more effective if given to people in their 40s or 50s,” he said.

Dr. Harrison and Dr. Taquet reported no disclosures. Dr. Doig is a founder, director, and consultant for PharmaKure, which works on Alzheimer’s drugs and diagnostics. Other commentators declared no disclosures.

A version of this article first appeared on Medscape.com.

Receipt of a newer recombinant version of a shingles vaccine is associated with a significant delay in dementia diagnosis in older adults, a new study suggests.

The study builds on previous observations of a reduction in dementia risk with the older live shingles vaccine and reports a delay in dementia diagnosis of 164 days with the newer recombinant version, compared with the live vaccine. 

“Given the prevalence of dementia, a delay of 164 days in diagnosis would not be a trivial effect at the public health level. It’s a big enough effect that if there is a causality it feels meaningful,” said senior author Paul Harrison, DM, FRCPsych, professor of psychiatry at the University of Oxford, Oxford, England. 

But Dr. Harrison stressed that the study had not proven that the shingles vaccine reduced dementia risk. 

“The design of the study allows us to do away with many of the confounding effects we usually see in observational studies, but this is still an observational study, and as such it cannot prove a definite causal effect,” he said. 

The study was published online on July 25 in Nature Medicine.
 

‘Natural Experiment’

Given the risk for deleterious consequences of shingles, vaccination is now recommended for older adults in many countries. The previously used live shingles vaccine (Zostavax) is being replaced in most countries with the new recombinant shingles vaccine (Shingrix), which is more effective at preventing shingles infection. 

The current study made use of a “natural experiment” in the United States, which switched over from use of the live vaccine to the recombinant vaccine in October 2017. 

Researchers used electronic heath records to compare the incidence of a dementia diagnosis in individuals who received the live shingles vaccine prior to October 2017 with those who received the recombinant version after the United States made the switch. 

They also used propensity score matching to further control for confounding factors, comparing 103,837 individuals who received a first dose of the live shingles vaccine between October 2014 and September 2017 with the same number of matched people who received the recombinant vaccine between November 2017 and October 2020. 

Results showed that within the 6 years after vaccination, the recombinant vaccine was associated with a delay in the diagnosis of dementia, compared with the live vaccine. Specifically, receiving the recombinant vaccine was associated with a 17% increase in diagnosis-free time, translating to 164 additional days lived without a diagnosis of dementia in those subsequently affected. 

As an additional control, the researchers also found significantly lower risks for dementia in individuals receiving the new recombinant shingles vaccine vs two other vaccines commonly used in older people: influenza and tetanus/diphtheria/pertussis vaccines, with increases in diagnosis-free time of 14%-27%. 

Reduced Risk or Delayed Diagnosis?

Speaking at a Science Media Centre press conference on the study, lead author Maxime Taquet, PhD, FRCPsych, clinical lecturer in psychiatry at the University of Oxford, noted that the total number of dementia cases were similar in the two shingles vaccine groups by the end of the 6-year follow-up period but there was a difference in the time at which they received a diagnosis of dementia.

“The study suggests that rather than actually reducing dementia risk, the recombinant vaccine delays the onset of dementia compared to the live vaccine in patients who go on to develop the condition,” he explained. 

But when comparing the recombinant vaccine with the influenza and tetanus/diphtheria/pertussis vaccines there was a clear reduction in dementia risk itself, Dr. Taquet reported. 

“It might well be that the live vaccine has a potential effect on the risk of dementia itself and therefore the recombinant vaccine only shows a delay in dementia compared to the live vaccine, but both of them might decrease the overall risk of dementia,” he suggested. 

But the researchers cautioned that this study could not prove causality. 

“While the two groups were very carefully matched in terms of factors that might influence the development of dementia, we still have to be cautious before assuming that the vaccine is indeed causally reducing the risk of onset of dementia,” Dr. Harrison warned. 

The researchers say the results would need to be confirmed in a randomized trial, which may have to be conducted in a slightly younger age group, as currently shingles vaccine is recommended for all older individuals in the United Kingdom. 

Vaccine recommendations vary from country to country, Dr. Harrison added. In the United States, the Centers for Disease Control and Prevention recommends the recombinant shingles vaccine for all adults aged 50 years or older. 

In the meantime, it would be interesting to see whether further observational studies in other countries find similar results as this US study, Dr. Harrison said.  
 

Mechanism Uncertain

Speculating on a possible mechanism behind the findings, Dr. Harrison suggested two plausible explanations.

“First, it is thought that the herpes virus could be one of many factors that could promote dementia, so a vaccine that stops reactivation of this virus might therefore be delaying that process,” he noted. 

The other possibility is that adjuvants included in the recombinant vaccine to stimulate the immune system might have played a role. 

“We don’t have any data on the mechanism, and thus study did not address that, so further studies are needed to look into this,” Dr. Harrison said. 
 

Stronger Effect in Women

Another intriguing finding is that the association with the recombinant vaccine and delayed dementia diagnosis seemed to be stronger in women vs men. 

In the original study of the live shingles vaccine, a protective effect against dementia was shown only in women. 

In the current study, the delay in dementia diagnosis was seen in both sexes but was stronger in women, showing a 22% increased time without dementia in women versus a 13% increased time in men with the recombinant versus the live vaccine. 

As expected, the recombinant vaccine was associated with a lower risk for shingles disease vs the live vaccine (2.5% versus 3.5%), but women did not have a better response than men did in this respect. 

“The better protection against shingles with the recombinant vaccine was similar in men and women, an observation that might be one reason to question the possible mechanism behind the dementia effect being better suppression of the herpes zoster virus by the recombinant vaccine,” Dr. Harrison commented. 

Though these findings are not likely to lead to any immediate changes in policy regarding the shingles vaccine, Dr. Harrison said it would be interesting to see whether uptake of the vaccine increased after this study. 

He estimated that, currently in the United Kingdom, about 60% of older adults choose to have the shingles vaccine. A 2020 study in the United States found that only about one-third of US adults over 60 had received the vaccine. 

“It will be interesting to see if that figure increases after these data are publicized, but I am not recommending that people have the vaccine specifically to lower their risk of dementia because of the caveats about the study that we have discussed,” he commented. 
 

Outside Experts Positive 

Outside experts, providing comment to the Science Media Centre, welcomed the new research. 

“ The study is very well-conducted and adds to previous data indicating that vaccination against shingles is associated with lower dementia risk. More research is needed in future to determine why this vaccine is associated with lower dementia risk,” said Tara Spires-Jones, FMedSci, president of the British Neuroscience Association. 

The high number of patients in the study and the adjustments for potential confounders are also strong points, noted Andrew Doig, PhD, professor of biochemistry, University of Manchester, Manchester, England.

“This is a significant result, comparable in effectiveness to the recent antibody drugs for Alzheimer’s disease,” Dr. Doig said. “Administering the recombinant shingles vaccine could well be a simple and cheap way to lower the risk of Alzheimer’s disease.”

Dr. Doig noted that a link between herpes zoster infection and the onset of dementia has been suspected for some time, and a trial of the antiviral drug valacyclovir against Alzheimer’s disease is currently underway.

In regard to the shingles vaccine, he said a placebo-controlled trial would be needed to prove causality. 

“We also need to see how many years the effect might last and whether we should vaccinate people at a younger age. We know that the path to Alzheimer’s can start decades before any symptoms are apparent, so the vaccine might be even more effective if given to people in their 40s or 50s,” he said.

Dr. Harrison and Dr. Taquet reported no disclosures. Dr. Doig is a founder, director, and consultant for PharmaKure, which works on Alzheimer’s drugs and diagnostics. Other commentators declared no disclosures.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity. 

ACIP, the CDC’s Advisory Committee on Immunization Practices, met for 3 days in June. New vaccines and new recommendations for respiratory syncytial virus (RSV), flu, COVID, and a new pneumococcal vaccine were revealed.

RSV Protection

We’ll begin with RSV vaccines for adults aged 60 or older. For this group, shared clinical decision-making is out; it no longer applies. New, more specific recommendations from ACIP for RSV vaccines are both age based and risk based. The age-based recommendation applies to those aged 75 or older, who should receive a single RSV vaccine dose. If they have already received a dose under the old recommendation, they don’t need another one, at least for now.

The risk-based recommendation applies to adults from age 60 up to 75, but only for those with risk factors for severe RSV. These risk factors include lung disease, heart disease, immunocompromise, diabetes, obesity with a BMI of 40 or more, neurologic conditions, neuromuscular conditions, chronic kidney disease, liver disorders, hematologic disorders, frailty, and living in a nursing home or other long-term care facility. Those aged 60-75 with these risk factors should receive the RSV vaccine, and those without them should not receive it. The best time to get the RSV vaccine is late summer, but early fall administration with other adult vaccines is allowed and is acceptable.

Vaccine safety concerns were top of mind as ACIP members began their deliberations. Possible safety concerns for RSV vaccines have been detected for Guillain-Barré syndrome, atrial fibrillation, and idiopathic thrombocytopenic purpura. Safety surveillance updates are still interim and inconclusive. These signals still need further study and clarification. 

Two RSV vaccines have been on the market: one by Pfizer, called Abrysvo, which does not contain an adjuvant; and another one by GSK, called Arexvy, which does contain an adjuvant. With the recent FDA approval of Moderna’s new mRNA RSV vaccine, mRESVIA, there are now three RSV vaccines licensed for those 60 or older. Arexvy is now FDA approved for adults in their 50s. That just happened in early June, but ACIP doesn’t currently recommend it for this fifty-something age group, even for those at high risk for severe RSV disease. This may change with greater clarification of potential vaccine safety concerns.

There is also news about protecting babies from RSV. RSV is the most common cause of hospitalization for infants in the United States, and most hospitalizations for RSV are in healthy, full-term infants. We now have two ways to protect babies: a dose of RSV vaccine given to mom, or a dose of the long-acting monoclonal antibody nirsevimab given to the baby. ACIP clarified that those who received a dose of maternal RSV vaccine during a previous pregnancy are not recommended to receive additional doses during future pregnancies, but infants born to those who were vaccinated for RSV during a prior pregnancy can receive nirsevimab, which is recommended for infants up to 8 months of age during their first RSV season, and for high-risk infants and toddlers aged 8-19 months during their second RSV season.

Last RSV season, supplies of nirsevimab were limited and doses had to be prioritized. No supply problems are anticipated for the upcoming season. A study published in March showed that nirsevimab was 90% effective at preventing RSV-associated hospitalization for infants in their first RSV season.
 

COVID

Here’s what’s new for COVID vaccines. A new-formula COVID vaccine will be ready for fall. ACIP voted unanimously to recommend a dose of the updated 2024-2025 COVID vaccine for everyone aged 6 months or older. This is a universal recommendation, just like the one we have for flu. But understand that even though COVID has waned, it’s still more deadly than flu. Most Americans now have some immunity against COVID, but this immunity wanes with time, and it also wanes as the virus keeps changing. These updated vaccines provide an incremental boost to our immunity for the new formula for fall. FDA has directed manufacturers to use a monovalent JN.1 lineage formula, with a preference for the KP.2 strain.

Older adults (aged 75 or older) and children under 6 months old are hit hardest by COVID. The littlest ones are too young to be vaccinated, but they can get protection from maternal vaccination. The uptake for last year’s COVID vaccine has been disappointing. Only 22.5% of adults and 14% of children received a dose of the updated shot. Focus-group discussions highlight the importance of a physician recommendation. Adults and children who receive a healthcare provider’s recommendation to get the COVID vaccine are more likely to get vaccinated. 
 

Pneumococcal Vaccines

On June 17, 2024, a new pneumococcal vaccine, PCV21, was FDA approved for those aged 18 or older under an accelerated-approval pathway. ACIP voted to keep it simple and recommends PCV21 as an option for adults aged 19 or older who currently have an indication to receive a dose of PCV. This new PCV21 vaccine is indicated for prevention of both invasive pneumococcal disease (IPD) and pneumococcal pneumonia. Its brand name is Capvaxive and it’s made by Merck. IPD includes bacteremia, pneumonia, pneumococcal bacteremia, and meningitis.

There are two basic types of pneumococcal vaccines: polysaccharide vaccines (PPSV), which do not produce memory B cells; and PCV conjugate vaccines, which do trigger memory B-cell production and therefore induce greater long-term immunity. PCV21 covers 11 unique serotypes not in PCV20. This is important because many cases of adult disease are caused by subtypes not covered by other FDA-approved pneumococcal vaccines. PCV21 has greater coverage of the serotypes that cause invasive disease in adults as compared with PCV20. PCV20 covers up to 58% of those strains, while PCV21 covers up to 84% of strains responsible for invasive disease in adults. But there’s one serotype missing in PCV21, which may limit the groups who receive it. PCV21 does not cover serotype 4, a major cause of IPD in certain populations. Adults experiencing homelessness are 100-300 times more likely to develop IPD due to serotype 4. So are adults in Alaska, especially Alaska Natives. They have an 88-fold increase in serotype 4 invasive disease. Serotype 4 is covered by other pneumococcal vaccines, so for these patients, PCV20 is likely a better high-valent conjugate vaccine option than PCV21.
 

Flu Vaccines

What’s new for flu? Everyone aged 6 months or older needs a seasonal flu vaccination every year. That’s not new, but there are two new things coming this fall: (1) The seasonal flu vaccine is going trivalent. FDA has removed the Yamagata flu B strain because it no longer appears to be circulating. (2) ACIP made a special off-label recommendation to boost flu protection for solid organ transplant recipients ages 18-64 who are on immunosuppressive medications. These high-risk patients now have the off-label option of receiving one of the higher-dose flu vaccines, including high-dose and adjuvanted flu vaccines, which are FDA approved only for those 65 or older.

Sandra Adamson Fryhofer, Adjunct Clinical Associate Professor of Medicine, Emory University School of Medicine, Atlanta, Georgia, has disclosed the following relevant financial relationships: Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for American Medical Association; Medical Association of Atlanta; ACIP liaison. Received income in an amount equal to or greater than $250 from American College of Physicians; Medscape; American Medical Association.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity. 

ACIP, the CDC’s Advisory Committee on Immunization Practices, met for 3 days in June. New vaccines and new recommendations for respiratory syncytial virus (RSV), flu, COVID, and a new pneumococcal vaccine were revealed.

RSV Protection

We’ll begin with RSV vaccines for adults aged 60 or older. For this group, shared clinical decision-making is out; it no longer applies. New, more specific recommendations from ACIP for RSV vaccines are both age based and risk based. The age-based recommendation applies to those aged 75 or older, who should receive a single RSV vaccine dose. If they have already received a dose under the old recommendation, they don’t need another one, at least for now.

The risk-based recommendation applies to adults from age 60 up to 75, but only for those with risk factors for severe RSV. These risk factors include lung disease, heart disease, immunocompromise, diabetes, obesity with a BMI of 40 or more, neurologic conditions, neuromuscular conditions, chronic kidney disease, liver disorders, hematologic disorders, frailty, and living in a nursing home or other long-term care facility. Those aged 60-75 with these risk factors should receive the RSV vaccine, and those without them should not receive it. The best time to get the RSV vaccine is late summer, but early fall administration with other adult vaccines is allowed and is acceptable.

Vaccine safety concerns were top of mind as ACIP members began their deliberations. Possible safety concerns for RSV vaccines have been detected for Guillain-Barré syndrome, atrial fibrillation, and idiopathic thrombocytopenic purpura. Safety surveillance updates are still interim and inconclusive. These signals still need further study and clarification. 

Two RSV vaccines have been on the market: one by Pfizer, called Abrysvo, which does not contain an adjuvant; and another one by GSK, called Arexvy, which does contain an adjuvant. With the recent FDA approval of Moderna’s new mRNA RSV vaccine, mRESVIA, there are now three RSV vaccines licensed for those 60 or older. Arexvy is now FDA approved for adults in their 50s. That just happened in early June, but ACIP doesn’t currently recommend it for this fifty-something age group, even for those at high risk for severe RSV disease. This may change with greater clarification of potential vaccine safety concerns.

There is also news about protecting babies from RSV. RSV is the most common cause of hospitalization for infants in the United States, and most hospitalizations for RSV are in healthy, full-term infants. We now have two ways to protect babies: a dose of RSV vaccine given to mom, or a dose of the long-acting monoclonal antibody nirsevimab given to the baby. ACIP clarified that those who received a dose of maternal RSV vaccine during a previous pregnancy are not recommended to receive additional doses during future pregnancies, but infants born to those who were vaccinated for RSV during a prior pregnancy can receive nirsevimab, which is recommended for infants up to 8 months of age during their first RSV season, and for high-risk infants and toddlers aged 8-19 months during their second RSV season.

Last RSV season, supplies of nirsevimab were limited and doses had to be prioritized. No supply problems are anticipated for the upcoming season. A study published in March showed that nirsevimab was 90% effective at preventing RSV-associated hospitalization for infants in their first RSV season.
 

COVID

Here’s what’s new for COVID vaccines. A new-formula COVID vaccine will be ready for fall. ACIP voted unanimously to recommend a dose of the updated 2024-2025 COVID vaccine for everyone aged 6 months or older. This is a universal recommendation, just like the one we have for flu. But understand that even though COVID has waned, it’s still more deadly than flu. Most Americans now have some immunity against COVID, but this immunity wanes with time, and it also wanes as the virus keeps changing. These updated vaccines provide an incremental boost to our immunity for the new formula for fall. FDA has directed manufacturers to use a monovalent JN.1 lineage formula, with a preference for the KP.2 strain.

Older adults (aged 75 or older) and children under 6 months old are hit hardest by COVID. The littlest ones are too young to be vaccinated, but they can get protection from maternal vaccination. The uptake for last year’s COVID vaccine has been disappointing. Only 22.5% of adults and 14% of children received a dose of the updated shot. Focus-group discussions highlight the importance of a physician recommendation. Adults and children who receive a healthcare provider’s recommendation to get the COVID vaccine are more likely to get vaccinated. 
 

Pneumococcal Vaccines

On June 17, 2024, a new pneumococcal vaccine, PCV21, was FDA approved for those aged 18 or older under an accelerated-approval pathway. ACIP voted to keep it simple and recommends PCV21 as an option for adults aged 19 or older who currently have an indication to receive a dose of PCV. This new PCV21 vaccine is indicated for prevention of both invasive pneumococcal disease (IPD) and pneumococcal pneumonia. Its brand name is Capvaxive and it’s made by Merck. IPD includes bacteremia, pneumonia, pneumococcal bacteremia, and meningitis.

There are two basic types of pneumococcal vaccines: polysaccharide vaccines (PPSV), which do not produce memory B cells; and PCV conjugate vaccines, which do trigger memory B-cell production and therefore induce greater long-term immunity. PCV21 covers 11 unique serotypes not in PCV20. This is important because many cases of adult disease are caused by subtypes not covered by other FDA-approved pneumococcal vaccines. PCV21 has greater coverage of the serotypes that cause invasive disease in adults as compared with PCV20. PCV20 covers up to 58% of those strains, while PCV21 covers up to 84% of strains responsible for invasive disease in adults. But there’s one serotype missing in PCV21, which may limit the groups who receive it. PCV21 does not cover serotype 4, a major cause of IPD in certain populations. Adults experiencing homelessness are 100-300 times more likely to develop IPD due to serotype 4. So are adults in Alaska, especially Alaska Natives. They have an 88-fold increase in serotype 4 invasive disease. Serotype 4 is covered by other pneumococcal vaccines, so for these patients, PCV20 is likely a better high-valent conjugate vaccine option than PCV21.
 

Flu Vaccines

What’s new for flu? Everyone aged 6 months or older needs a seasonal flu vaccination every year. That’s not new, but there are two new things coming this fall: (1) The seasonal flu vaccine is going trivalent. FDA has removed the Yamagata flu B strain because it no longer appears to be circulating. (2) ACIP made a special off-label recommendation to boost flu protection for solid organ transplant recipients ages 18-64 who are on immunosuppressive medications. These high-risk patients now have the off-label option of receiving one of the higher-dose flu vaccines, including high-dose and adjuvanted flu vaccines, which are FDA approved only for those 65 or older.

Sandra Adamson Fryhofer, Adjunct Clinical Associate Professor of Medicine, Emory University School of Medicine, Atlanta, Georgia, has disclosed the following relevant financial relationships: Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for American Medical Association; Medical Association of Atlanta; ACIP liaison. Received income in an amount equal to or greater than $250 from American College of Physicians; Medscape; American Medical Association.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity. 

ACIP, the CDC’s Advisory Committee on Immunization Practices, met for 3 days in June. New vaccines and new recommendations for respiratory syncytial virus (RSV), flu, COVID, and a new pneumococcal vaccine were revealed.

RSV Protection

We’ll begin with RSV vaccines for adults aged 60 or older. For this group, shared clinical decision-making is out; it no longer applies. New, more specific recommendations from ACIP for RSV vaccines are both age based and risk based. The age-based recommendation applies to those aged 75 or older, who should receive a single RSV vaccine dose. If they have already received a dose under the old recommendation, they don’t need another one, at least for now.

The risk-based recommendation applies to adults from age 60 up to 75, but only for those with risk factors for severe RSV. These risk factors include lung disease, heart disease, immunocompromise, diabetes, obesity with a BMI of 40 or more, neurologic conditions, neuromuscular conditions, chronic kidney disease, liver disorders, hematologic disorders, frailty, and living in a nursing home or other long-term care facility. Those aged 60-75 with these risk factors should receive the RSV vaccine, and those without them should not receive it. The best time to get the RSV vaccine is late summer, but early fall administration with other adult vaccines is allowed and is acceptable.

Vaccine safety concerns were top of mind as ACIP members began their deliberations. Possible safety concerns for RSV vaccines have been detected for Guillain-Barré syndrome, atrial fibrillation, and idiopathic thrombocytopenic purpura. Safety surveillance updates are still interim and inconclusive. These signals still need further study and clarification. 

Two RSV vaccines have been on the market: one by Pfizer, called Abrysvo, which does not contain an adjuvant; and another one by GSK, called Arexvy, which does contain an adjuvant. With the recent FDA approval of Moderna’s new mRNA RSV vaccine, mRESVIA, there are now three RSV vaccines licensed for those 60 or older. Arexvy is now FDA approved for adults in their 50s. That just happened in early June, but ACIP doesn’t currently recommend it for this fifty-something age group, even for those at high risk for severe RSV disease. This may change with greater clarification of potential vaccine safety concerns.

There is also news about protecting babies from RSV. RSV is the most common cause of hospitalization for infants in the United States, and most hospitalizations for RSV are in healthy, full-term infants. We now have two ways to protect babies: a dose of RSV vaccine given to mom, or a dose of the long-acting monoclonal antibody nirsevimab given to the baby. ACIP clarified that those who received a dose of maternal RSV vaccine during a previous pregnancy are not recommended to receive additional doses during future pregnancies, but infants born to those who were vaccinated for RSV during a prior pregnancy can receive nirsevimab, which is recommended for infants up to 8 months of age during their first RSV season, and for high-risk infants and toddlers aged 8-19 months during their second RSV season.

Last RSV season, supplies of nirsevimab were limited and doses had to be prioritized. No supply problems are anticipated for the upcoming season. A study published in March showed that nirsevimab was 90% effective at preventing RSV-associated hospitalization for infants in their first RSV season.
 

COVID

Here’s what’s new for COVID vaccines. A new-formula COVID vaccine will be ready for fall. ACIP voted unanimously to recommend a dose of the updated 2024-2025 COVID vaccine for everyone aged 6 months or older. This is a universal recommendation, just like the one we have for flu. But understand that even though COVID has waned, it’s still more deadly than flu. Most Americans now have some immunity against COVID, but this immunity wanes with time, and it also wanes as the virus keeps changing. These updated vaccines provide an incremental boost to our immunity for the new formula for fall. FDA has directed manufacturers to use a monovalent JN.1 lineage formula, with a preference for the KP.2 strain.

Older adults (aged 75 or older) and children under 6 months old are hit hardest by COVID. The littlest ones are too young to be vaccinated, but they can get protection from maternal vaccination. The uptake for last year’s COVID vaccine has been disappointing. Only 22.5% of adults and 14% of children received a dose of the updated shot. Focus-group discussions highlight the importance of a physician recommendation. Adults and children who receive a healthcare provider’s recommendation to get the COVID vaccine are more likely to get vaccinated. 
 

Pneumococcal Vaccines

On June 17, 2024, a new pneumococcal vaccine, PCV21, was FDA approved for those aged 18 or older under an accelerated-approval pathway. ACIP voted to keep it simple and recommends PCV21 as an option for adults aged 19 or older who currently have an indication to receive a dose of PCV. This new PCV21 vaccine is indicated for prevention of both invasive pneumococcal disease (IPD) and pneumococcal pneumonia. Its brand name is Capvaxive and it’s made by Merck. IPD includes bacteremia, pneumonia, pneumococcal bacteremia, and meningitis.

There are two basic types of pneumococcal vaccines: polysaccharide vaccines (PPSV), which do not produce memory B cells; and PCV conjugate vaccines, which do trigger memory B-cell production and therefore induce greater long-term immunity. PCV21 covers 11 unique serotypes not in PCV20. This is important because many cases of adult disease are caused by subtypes not covered by other FDA-approved pneumococcal vaccines. PCV21 has greater coverage of the serotypes that cause invasive disease in adults as compared with PCV20. PCV20 covers up to 58% of those strains, while PCV21 covers up to 84% of strains responsible for invasive disease in adults. But there’s one serotype missing in PCV21, which may limit the groups who receive it. PCV21 does not cover serotype 4, a major cause of IPD in certain populations. Adults experiencing homelessness are 100-300 times more likely to develop IPD due to serotype 4. So are adults in Alaska, especially Alaska Natives. They have an 88-fold increase in serotype 4 invasive disease. Serotype 4 is covered by other pneumococcal vaccines, so for these patients, PCV20 is likely a better high-valent conjugate vaccine option than PCV21.
 

Flu Vaccines

What’s new for flu? Everyone aged 6 months or older needs a seasonal flu vaccination every year. That’s not new, but there are two new things coming this fall: (1) The seasonal flu vaccine is going trivalent. FDA has removed the Yamagata flu B strain because it no longer appears to be circulating. (2) ACIP made a special off-label recommendation to boost flu protection for solid organ transplant recipients ages 18-64 who are on immunosuppressive medications. These high-risk patients now have the off-label option of receiving one of the higher-dose flu vaccines, including high-dose and adjuvanted flu vaccines, which are FDA approved only for those 65 or older.

Sandra Adamson Fryhofer, Adjunct Clinical Associate Professor of Medicine, Emory University School of Medicine, Atlanta, Georgia, has disclosed the following relevant financial relationships: Serve(d) as a director, officer, partner, employee, advisor, consultant, or trustee for American Medical Association; Medical Association of Atlanta; ACIP liaison. Received income in an amount equal to or greater than $250 from American College of Physicians; Medscape; American Medical Association.

A version of this article first appeared on Medscape.com.

Hepatitis B (Hep B) is a liver infection against which vaccination was previously recommended for certain eligible risk groups. However, in 2022, the Centers for Disease Control and Prevention (CDC) switched from recommending vaccination for at-risk persons to recommending universal vaccination for children and adults.

That includes infants, children 18 years of age and younger, adults aged 19-59, and people aged 60 and up with risk factors for this viral infection. Even those aged 60 and older without known risk factors for hepatitis B may receive Hep B vaccines.

Risk factors under prior recommendations included potential criminal or stigmatizing behaviors such as injection-drug use, incarceration, or multiple sex partners, which limited risk assessment by providers. The CDC points out that universal adult Hep B vaccination through age 59 obviates the need for the previous approach of risk-factor screening and sensitive disclosures to determine eligibility and could increase vaccination coverage and reduce cases.

“A universal recommendation for Hep B vaccination could increase the number of persons who receive vaccination before the onset of chronic liver disease and other comorbidities (e.g., obesity or diabetes) that might make vaccination less effective,” the CDC stated, noting that patients with chronic liver disease have a reduced immune response to Hep B vaccination. Hep B vaccination also protects against hepatitis D.

“Most people born in the US are vaccinated during infancy, beginning on the first day of life,” Lauren D. Block, MD, an internist at Northwell Health and an assistant professor in the Institute of Health System Science at the Feinstein Institutes for Medical Research at sites in metropolitan New York City, said in an interview.

Feinstein Institute for Medical Research

Typically, Dr. Block added, at-risk persons will have titers drawn to make sure they are immune to Hep B. “Titers can wane over the decades in healthy people, in which case a booster shot may be needed, or a restart of the three-part vaccination series if a person is not sure if they were vaccinated previously.” Those at greater risk include people with weakened immune systems, people with diabetes or on immunosuppressives, healthcare workers, travelers to higher-risk countries, people with multiple sexual partners, and IV drug users.

Although Hep B vaccines have demonstrated safety, immunogenicity, and efficacy during the past four decades, coverage among US adults has been suboptimal, limiting further reduction in infections, the CDC noted.

Hepatitis A

Though not widely endemic to North America, Hep A can be acquired during travel abroad, particularly to developing countries, or through exposure to unsanitary conditions and contaminated food or water.

The CDC recommends routine Hep A vaccination for all children aged 12-23 months, all unvaccinated children and adolescents 2-18 years, and all persons, including those who are pregnant, with increased risk factors for this orally and fecally transmitted infection or at risk for severe disease from it. At-risk groups include international travelers to affected regions, men who have sex with men, incarcerated individuals or group-home residents, injection and non-injection drug users, and homeless persons.
 

Hepatitis C and E

There is no vaccine for Hep C, and no FDA-approved vaccine in the United States for hepatitis E, although a vaccine for the latter was approved in China in 2012.

As with Hep A, observing strict water, food, and sanitation standards is essential for preventing infection with hepatitis E.

Dr. Block disclosed no competing interests relevant to her comments.

Hepatitis B (Hep B) is a liver infection against which vaccination was previously recommended for certain eligible risk groups. However, in 2022, the Centers for Disease Control and Prevention (CDC) switched from recommending vaccination for at-risk persons to recommending universal vaccination for children and adults.

That includes infants, children 18 years of age and younger, adults aged 19-59, and people aged 60 and up with risk factors for this viral infection. Even those aged 60 and older without known risk factors for hepatitis B may receive Hep B vaccines.

Risk factors under prior recommendations included potential criminal or stigmatizing behaviors such as injection-drug use, incarceration, or multiple sex partners, which limited risk assessment by providers. The CDC points out that universal adult Hep B vaccination through age 59 obviates the need for the previous approach of risk-factor screening and sensitive disclosures to determine eligibility and could increase vaccination coverage and reduce cases.

“A universal recommendation for Hep B vaccination could increase the number of persons who receive vaccination before the onset of chronic liver disease and other comorbidities (e.g., obesity or diabetes) that might make vaccination less effective,” the CDC stated, noting that patients with chronic liver disease have a reduced immune response to Hep B vaccination. Hep B vaccination also protects against hepatitis D.

“Most people born in the US are vaccinated during infancy, beginning on the first day of life,” Lauren D. Block, MD, an internist at Northwell Health and an assistant professor in the Institute of Health System Science at the Feinstein Institutes for Medical Research at sites in metropolitan New York City, said in an interview.

Feinstein Institute for Medical Research

Typically, Dr. Block added, at-risk persons will have titers drawn to make sure they are immune to Hep B. “Titers can wane over the decades in healthy people, in which case a booster shot may be needed, or a restart of the three-part vaccination series if a person is not sure if they were vaccinated previously.” Those at greater risk include people with weakened immune systems, people with diabetes or on immunosuppressives, healthcare workers, travelers to higher-risk countries, people with multiple sexual partners, and IV drug users.

Although Hep B vaccines have demonstrated safety, immunogenicity, and efficacy during the past four decades, coverage among US adults has been suboptimal, limiting further reduction in infections, the CDC noted.

Hepatitis A

Though not widely endemic to North America, Hep A can be acquired during travel abroad, particularly to developing countries, or through exposure to unsanitary conditions and contaminated food or water.

The CDC recommends routine Hep A vaccination for all children aged 12-23 months, all unvaccinated children and adolescents 2-18 years, and all persons, including those who are pregnant, with increased risk factors for this orally and fecally transmitted infection or at risk for severe disease from it. At-risk groups include international travelers to affected regions, men who have sex with men, incarcerated individuals or group-home residents, injection and non-injection drug users, and homeless persons.
 

Hepatitis C and E

There is no vaccine for Hep C, and no FDA-approved vaccine in the United States for hepatitis E, although a vaccine for the latter was approved in China in 2012.

As with Hep A, observing strict water, food, and sanitation standards is essential for preventing infection with hepatitis E.

Dr. Block disclosed no competing interests relevant to her comments.

Hepatitis B (Hep B) is a liver infection against which vaccination was previously recommended for certain eligible risk groups. However, in 2022, the Centers for Disease Control and Prevention (CDC) switched from recommending vaccination for at-risk persons to recommending universal vaccination for children and adults.

That includes infants, children 18 years of age and younger, adults aged 19-59, and people aged 60 and up with risk factors for this viral infection. Even those aged 60 and older without known risk factors for hepatitis B may receive Hep B vaccines.

Risk factors under prior recommendations included potential criminal or stigmatizing behaviors such as injection-drug use, incarceration, or multiple sex partners, which limited risk assessment by providers. The CDC points out that universal adult Hep B vaccination through age 59 obviates the need for the previous approach of risk-factor screening and sensitive disclosures to determine eligibility and could increase vaccination coverage and reduce cases.

“A universal recommendation for Hep B vaccination could increase the number of persons who receive vaccination before the onset of chronic liver disease and other comorbidities (e.g., obesity or diabetes) that might make vaccination less effective,” the CDC stated, noting that patients with chronic liver disease have a reduced immune response to Hep B vaccination. Hep B vaccination also protects against hepatitis D.

“Most people born in the US are vaccinated during infancy, beginning on the first day of life,” Lauren D. Block, MD, an internist at Northwell Health and an assistant professor in the Institute of Health System Science at the Feinstein Institutes for Medical Research at sites in metropolitan New York City, said in an interview.

Feinstein Institute for Medical Research

Typically, Dr. Block added, at-risk persons will have titers drawn to make sure they are immune to Hep B. “Titers can wane over the decades in healthy people, in which case a booster shot may be needed, or a restart of the three-part vaccination series if a person is not sure if they were vaccinated previously.” Those at greater risk include people with weakened immune systems, people with diabetes or on immunosuppressives, healthcare workers, travelers to higher-risk countries, people with multiple sexual partners, and IV drug users.

Although Hep B vaccines have demonstrated safety, immunogenicity, and efficacy during the past four decades, coverage among US adults has been suboptimal, limiting further reduction in infections, the CDC noted.

Hepatitis A

Though not widely endemic to North America, Hep A can be acquired during travel abroad, particularly to developing countries, or through exposure to unsanitary conditions and contaminated food or water.

The CDC recommends routine Hep A vaccination for all children aged 12-23 months, all unvaccinated children and adolescents 2-18 years, and all persons, including those who are pregnant, with increased risk factors for this orally and fecally transmitted infection or at risk for severe disease from it. At-risk groups include international travelers to affected regions, men who have sex with men, incarcerated individuals or group-home residents, injection and non-injection drug users, and homeless persons.
 

Hepatitis C and E

There is no vaccine for Hep C, and no FDA-approved vaccine in the United States for hepatitis E, although a vaccine for the latter was approved in China in 2012.

As with Hep A, observing strict water, food, and sanitation standards is essential for preventing infection with hepatitis E.

Dr. Block disclosed no competing interests relevant to her comments.

This transcript has been edited for clarity. 

There has been a large amount of news lately about dating online and dating apps. Probably the most common way younger people find potential partners is to go online and see who’s there that they might want to meet. 

Online dating is also notorious for being full of scammers. There are all kinds of people out there that you have to be careful of, who are trying to rip you off by saying, “Send me money, I’m in trouble,” or “Now that we have a relationship, will you support my particular entrepreneurial idea?” Certainly, dangers are there. 

Another danger we don’t talk much about is meeting people who have sexually transmitted diseases. That’s been a problem before websites and before dating apps. I think the opportunity of meeting more people — strangers, people you don’t really know — who may not tell you the truth about their health, and particularly their sexual health, is really out there. 

It’s always good medical advice to tell people to practice safe sex, and that often involves a man wearing a condom. It certainly is the case that we want to attend not just to the prevention of unwanted pregnancy but also to the transmission of diseases. I think it’s very important to tell women of reproductive age to get their HPV shot to try to reduce cancers in their reproductive systems, or sometimes in men — anal cancers, or even being a transmitter of disease. 

Even then, certainly one wants to recommend that, in an age where some people are going to meet many partners that they don’t know well or don’t have much background with, it’s wise to try to prevent diseases using the vaccines we’ve got, using the contraceptive methods that will prevent disease transmission, and reminding people to ask about sex life. 

I did come across a website that just startled me. It’s called HeHealth, and basically it says to men, if you are conscientious about your sex life, take a picture of your penis, send it to us, and we have doctors — I presume they’re US doctors but I don’t know — who will diagnose venereal diseases based on that picture. I presume women could also say, “Before we have sex, or now that we’re approaching that possibility, I want you to send a picture to this company on this website.” 

Now, a couple of reminders. I think we all know this, but just because you’re not manifesting symptoms on your reproductive organs doesn’t mean you don’t have a sexual disease. It’s not a reliable measure. Yes, maybe you could have somebody say: “Oh, that looks nasty. I’m not sure you ought to have sex right now, and maybe you should go get some treatment.” This is going to miss many cases and is not a reliable indicator that your partner is safe in terms of not transmitting diseases to you. 

It also isn’t clear what they do with these images. Do they keep them? Who can see them? Could they resell them? What sort of privacy protection have you got if you decide to use this? 

There’s another issue here, which is, if they misdiagnose someone and you do catch a sexual disease, who’s liable? Can you go after them for using doctors who weren’t competent or transmitting images that weren’t really adequate because you didn’t know how to take that picture properly when you sent that off to them? There are many unknowns. 

The bottom line is that we’re in a different world, I think, of romance. We’re in a world where some people are going to meet more partners. Some people are going to meet more strangers. One approach is to have us take pictures of ourselves, send them off to who knows where, and ask for a green light to go ahead and have sexual relations. I don’t think we’re anywhere close to being able to rely on that as a way to avoid the risks of unprotected sexual behavior. 

We do know what to do in dealing with patients who are sexually active. First, we have to ask them. Then we’ve got to recommend available vaccinations to prevent the transmission of some cancers, the HPV vaccine. Then they need that reminder about safe sexual practices not only to protect against unwanted pregnancy, but still, in this day and age, to protect against syphilis, which is on the rise, plus HIV, gonorrhea, chlamydia, and other sexually transmissible diseases. 

I’m not going to rely on the penis picture to make the world safe for sex. I think we have to still use the old-fashioned techniques of education and prevention to do the best we can.

Dr. Caplan is director of the Division of Medical Ethics at New York University Langone Medical Center, New York City. He reported conflicts of interest with Johnson & Johnson’s Panel for Compassionate Drug Use and Medscape.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity. 

There has been a large amount of news lately about dating online and dating apps. Probably the most common way younger people find potential partners is to go online and see who’s there that they might want to meet. 

Online dating is also notorious for being full of scammers. There are all kinds of people out there that you have to be careful of, who are trying to rip you off by saying, “Send me money, I’m in trouble,” or “Now that we have a relationship, will you support my particular entrepreneurial idea?” Certainly, dangers are there. 

Another danger we don’t talk much about is meeting people who have sexually transmitted diseases. That’s been a problem before websites and before dating apps. I think the opportunity of meeting more people — strangers, people you don’t really know — who may not tell you the truth about their health, and particularly their sexual health, is really out there. 

It’s always good medical advice to tell people to practice safe sex, and that often involves a man wearing a condom. It certainly is the case that we want to attend not just to the prevention of unwanted pregnancy but also to the transmission of diseases. I think it’s very important to tell women of reproductive age to get their HPV shot to try to reduce cancers in their reproductive systems, or sometimes in men — anal cancers, or even being a transmitter of disease. 

Even then, certainly one wants to recommend that, in an age where some people are going to meet many partners that they don’t know well or don’t have much background with, it’s wise to try to prevent diseases using the vaccines we’ve got, using the contraceptive methods that will prevent disease transmission, and reminding people to ask about sex life. 

I did come across a website that just startled me. It’s called HeHealth, and basically it says to men, if you are conscientious about your sex life, take a picture of your penis, send it to us, and we have doctors — I presume they’re US doctors but I don’t know — who will diagnose venereal diseases based on that picture. I presume women could also say, “Before we have sex, or now that we’re approaching that possibility, I want you to send a picture to this company on this website.” 

Now, a couple of reminders. I think we all know this, but just because you’re not manifesting symptoms on your reproductive organs doesn’t mean you don’t have a sexual disease. It’s not a reliable measure. Yes, maybe you could have somebody say: “Oh, that looks nasty. I’m not sure you ought to have sex right now, and maybe you should go get some treatment.” This is going to miss many cases and is not a reliable indicator that your partner is safe in terms of not transmitting diseases to you. 

It also isn’t clear what they do with these images. Do they keep them? Who can see them? Could they resell them? What sort of privacy protection have you got if you decide to use this? 

There’s another issue here, which is, if they misdiagnose someone and you do catch a sexual disease, who’s liable? Can you go after them for using doctors who weren’t competent or transmitting images that weren’t really adequate because you didn’t know how to take that picture properly when you sent that off to them? There are many unknowns. 

The bottom line is that we’re in a different world, I think, of romance. We’re in a world where some people are going to meet more partners. Some people are going to meet more strangers. One approach is to have us take pictures of ourselves, send them off to who knows where, and ask for a green light to go ahead and have sexual relations. I don’t think we’re anywhere close to being able to rely on that as a way to avoid the risks of unprotected sexual behavior. 

We do know what to do in dealing with patients who are sexually active. First, we have to ask them. Then we’ve got to recommend available vaccinations to prevent the transmission of some cancers, the HPV vaccine. Then they need that reminder about safe sexual practices not only to protect against unwanted pregnancy, but still, in this day and age, to protect against syphilis, which is on the rise, plus HIV, gonorrhea, chlamydia, and other sexually transmissible diseases. 

I’m not going to rely on the penis picture to make the world safe for sex. I think we have to still use the old-fashioned techniques of education and prevention to do the best we can.

Dr. Caplan is director of the Division of Medical Ethics at New York University Langone Medical Center, New York City. He reported conflicts of interest with Johnson & Johnson’s Panel for Compassionate Drug Use and Medscape.

A version of this article first appeared on Medscape.com.

This transcript has been edited for clarity. 

There has been a large amount of news lately about dating online and dating apps. Probably the most common way younger people find potential partners is to go online and see who’s there that they might want to meet. 

Online dating is also notorious for being full of scammers. There are all kinds of people out there that you have to be careful of, who are trying to rip you off by saying, “Send me money, I’m in trouble,” or “Now that we have a relationship, will you support my particular entrepreneurial idea?” Certainly, dangers are there. 

Another danger we don’t talk much about is meeting people who have sexually transmitted diseases. That’s been a problem before websites and before dating apps. I think the opportunity of meeting more people — strangers, people you don’t really know — who may not tell you the truth about their health, and particularly their sexual health, is really out there. 

It’s always good medical advice to tell people to practice safe sex, and that often involves a man wearing a condom. It certainly is the case that we want to attend not just to the prevention of unwanted pregnancy but also to the transmission of diseases. I think it’s very important to tell women of reproductive age to get their HPV shot to try to reduce cancers in their reproductive systems, or sometimes in men — anal cancers, or even being a transmitter of disease. 

Even then, certainly one wants to recommend that, in an age where some people are going to meet many partners that they don’t know well or don’t have much background with, it’s wise to try to prevent diseases using the vaccines we’ve got, using the contraceptive methods that will prevent disease transmission, and reminding people to ask about sex life. 

I did come across a website that just startled me. It’s called HeHealth, and basically it says to men, if you are conscientious about your sex life, take a picture of your penis, send it to us, and we have doctors — I presume they’re US doctors but I don’t know — who will diagnose venereal diseases based on that picture. I presume women could also say, “Before we have sex, or now that we’re approaching that possibility, I want you to send a picture to this company on this website.” 

Now, a couple of reminders. I think we all know this, but just because you’re not manifesting symptoms on your reproductive organs doesn’t mean you don’t have a sexual disease. It’s not a reliable measure. Yes, maybe you could have somebody say: “Oh, that looks nasty. I’m not sure you ought to have sex right now, and maybe you should go get some treatment.” This is going to miss many cases and is not a reliable indicator that your partner is safe in terms of not transmitting diseases to you. 

It also isn’t clear what they do with these images. Do they keep them? Who can see them? Could they resell them? What sort of privacy protection have you got if you decide to use this? 

There’s another issue here, which is, if they misdiagnose someone and you do catch a sexual disease, who’s liable? Can you go after them for using doctors who weren’t competent or transmitting images that weren’t really adequate because you didn’t know how to take that picture properly when you sent that off to them? There are many unknowns. 

The bottom line is that we’re in a different world, I think, of romance. We’re in a world where some people are going to meet more partners. Some people are going to meet more strangers. One approach is to have us take pictures of ourselves, send them off to who knows where, and ask for a green light to go ahead and have sexual relations. I don’t think we’re anywhere close to being able to rely on that as a way to avoid the risks of unprotected sexual behavior. 

We do know what to do in dealing with patients who are sexually active. First, we have to ask them. Then we’ve got to recommend available vaccinations to prevent the transmission of some cancers, the HPV vaccine. Then they need that reminder about safe sexual practices not only to protect against unwanted pregnancy, but still, in this day and age, to protect against syphilis, which is on the rise, plus HIV, gonorrhea, chlamydia, and other sexually transmissible diseases. 

I’m not going to rely on the penis picture to make the world safe for sex. I think we have to still use the old-fashioned techniques of education and prevention to do the best we can.

Dr. Caplan is director of the Division of Medical Ethics at New York University Langone Medical Center, New York City. He reported conflicts of interest with Johnson & Johnson’s Panel for Compassionate Drug Use and Medscape.

A version of this article first appeared on Medscape.com.