Vaccines

The Food and Drug Administration has approved the Flucelvax quadrivalent vaccine for use in children aged 6 months and older, according to a statement from manufacturer Seqirus.

“This approval officially allows all eligible Americans to receive a cell-based influenza vaccine, increasing the potential for greater vaccine effectiveness,” according to the company.

The Centers for Disease Control and Prevention currently recommends annual influenza vaccination for all individuals aged 6 months and older without contraindications.

Flucelvax is manufactured using a cell-based process that yields a more precise match to the WHO-selected influenza strains for a given year. This process avoids the variation associated with traditional egg-based vaccines, and offers the potential for greater vaccine effectiveness, according to the company.

The approval was based in part on data from a phase 3 randomized, controlled noninferiority study of children aged 6-47 months. The data are the first for a cell-based flu vaccine in this age group, and were presented at the Pediatric Academic Societies meeting in 2021.

In the immunogenicity study of children aged 6 months through 3 years, described in the package insert, 1,597 children received Flucelvax quadrivalent and 805 received a control quadrivalent vaccine. After 28 days, Flucelvax showed noninferiority to the control quadrivalent against four influenza strains.

The most common side effects with Flucelvax quadrivalent vaccine overall are pain, redness, swelling, or a hardened area at the injection site, headache, low energy, muscle aches, and malaise. Additional side effects reported in children include tenderness or bruising at the injection site, sleepiness, diarrhea, changes in eating habits, and irritability. The vaccine is contraindicated for individuals with allergies to any of its ingredients.

Additional efficacy data on Flucelvax for children and adolescents aged 2-18 years were recently published in The New England Journal of Medicine.

Full prescribing information for Flucelvax is available here.

The FDA approval letter is available here.[email protected]

The Food and Drug Administration has approved the Flucelvax quadrivalent vaccine for use in children aged 6 months and older, according to a statement from manufacturer Seqirus.

“This approval officially allows all eligible Americans to receive a cell-based influenza vaccine, increasing the potential for greater vaccine effectiveness,” according to the company.

The Centers for Disease Control and Prevention currently recommends annual influenza vaccination for all individuals aged 6 months and older without contraindications.

Flucelvax is manufactured using a cell-based process that yields a more precise match to the WHO-selected influenza strains for a given year. This process avoids the variation associated with traditional egg-based vaccines, and offers the potential for greater vaccine effectiveness, according to the company.

The approval was based in part on data from a phase 3 randomized, controlled noninferiority study of children aged 6-47 months. The data are the first for a cell-based flu vaccine in this age group, and were presented at the Pediatric Academic Societies meeting in 2021.

In the immunogenicity study of children aged 6 months through 3 years, described in the package insert, 1,597 children received Flucelvax quadrivalent and 805 received a control quadrivalent vaccine. After 28 days, Flucelvax showed noninferiority to the control quadrivalent against four influenza strains.

The most common side effects with Flucelvax quadrivalent vaccine overall are pain, redness, swelling, or a hardened area at the injection site, headache, low energy, muscle aches, and malaise. Additional side effects reported in children include tenderness or bruising at the injection site, sleepiness, diarrhea, changes in eating habits, and irritability. The vaccine is contraindicated for individuals with allergies to any of its ingredients.

Additional efficacy data on Flucelvax for children and adolescents aged 2-18 years were recently published in The New England Journal of Medicine.

Full prescribing information for Flucelvax is available here.

The FDA approval letter is available here.[email protected]

The Food and Drug Administration has approved the Flucelvax quadrivalent vaccine for use in children aged 6 months and older, according to a statement from manufacturer Seqirus.

“This approval officially allows all eligible Americans to receive a cell-based influenza vaccine, increasing the potential for greater vaccine effectiveness,” according to the company.

The Centers for Disease Control and Prevention currently recommends annual influenza vaccination for all individuals aged 6 months and older without contraindications.

Flucelvax is manufactured using a cell-based process that yields a more precise match to the WHO-selected influenza strains for a given year. This process avoids the variation associated with traditional egg-based vaccines, and offers the potential for greater vaccine effectiveness, according to the company.

The approval was based in part on data from a phase 3 randomized, controlled noninferiority study of children aged 6-47 months. The data are the first for a cell-based flu vaccine in this age group, and were presented at the Pediatric Academic Societies meeting in 2021.

In the immunogenicity study of children aged 6 months through 3 years, described in the package insert, 1,597 children received Flucelvax quadrivalent and 805 received a control quadrivalent vaccine. After 28 days, Flucelvax showed noninferiority to the control quadrivalent against four influenza strains.

The most common side effects with Flucelvax quadrivalent vaccine overall are pain, redness, swelling, or a hardened area at the injection site, headache, low energy, muscle aches, and malaise. Additional side effects reported in children include tenderness or bruising at the injection site, sleepiness, diarrhea, changes in eating habits, and irritability. The vaccine is contraindicated for individuals with allergies to any of its ingredients.

Additional efficacy data on Flucelvax for children and adolescents aged 2-18 years were recently published in The New England Journal of Medicine.

Full prescribing information for Flucelvax is available here.

The FDA approval letter is available here.[email protected]

Patients who are being treated with Janus kinase (JAK) inhibitors overall show a high immune response rate to COVID-19 vaccination, one that matches the rates seen in patients on other immunosuppressants, a new study has found.

The patients taking a JAK inhibitor who are most at risk of a diminished response may be those on upadacitinib (Rinvoq) and anyone 65 years or older, wrote Raphaèle Seror, MD, PhD, of Paris-Saclay (France) University and coauthors. The study was published in The Lancet Rheumatology.

To gauge the effectiveness of COVID-19 vaccines in this subset of immunosuppressed patients, the researchers analyzed 113 participants in the MAJIK-SFR Registry, a multicenter study of French patients with rheumatoid or psoriatic arthritis. The participants were treated at 13 centers throughout France; their mean age was 61.8 years (standard deviation, 12.5), and 72% were female. A total of 56 were taking baricitinib (Olumiant), 30 were taking tofacitinib (Xeljanz), and 27 were taking upadacitinib.

Serologic assessment was performed an average of 8.7 weeks (SD, 5.2) after the last dose of vaccine. The overall response rate – defined as the proportion of patients with detectable anti-spike antibodies per manufacturer’s cutoff values – was 88% (100 of 113). The nonresponse rate was higher with upadacitinib (7 of 27 patients, 26%) than with baricitinib (5 of 56, 9%) or tofacitinib (1 of 30, 3%). The only nonresponders who were not age 65 or older were four of the seven who received upadacitinib. The interval between the last vaccine dose and serologic assessment was somewhat longer in nonresponders (11.3 weeks) than in responders (8.3 weeks).

Earlier this year, the American College of Rheumatology recommended withholding JAK inhibitors for 1 week after each vaccine dose because of “concern related to the effects of this medication class on interferon signaling that may result in a diminished vaccine response Only two patients in the study had treatment with JAK inhibitors stopped before or after vaccination.

Questions about antibody levels remain difficult to answer

“This study does further confirm a big point,” said Alfred Kim, MD, PhD, of Washington University, St. Louis, in an interview. “Most people on any sort of immunosuppression, with rare exceptions, can mount responses to COVID-19 vaccination.”

“What level of response is going to be sufficient, of course, is not clear,” he added. “Even though most people generate responses, at the population level those responses seem lower than those in nonimmunosuppressed people. Particularly for those on upadacitinib, which is lower than patients on the other JAK inhibitors. Is that problematic? We don’t know yet.”

Dr. Kim, who was part of a separate, earlier study that assessed vaccine response in patients with chronic inflammatory disease who were being treated with immunosuppressive medications, noted that many of the questions patients are asking about their antibody levels cannot yet be answered.

“It’s kind of the Wild West of serologic testing out there right now,” he said. “Even though we’re recommending that people still don’t check their antibody levels because their results are largely inactionable, everyone is still getting them anyway. But each of these tests are slightly different, and the results and the interpretation are further clouded because of those slight performance differences between each platform.”

Dr. Kim highlighted the number of different tests as one of this study’s notable limitations: 11 different assays were used to determine patients’ immune responses. “The authors made the argument that these tests are FDA approved, and that’s true, but that doesn’t necessarily mean much. Approval does translate to technical reliability but not to comparisons between the tests.”

As for next steps, both the authors and Dr. Kim recognized the need for a prospective trial. “To do a vaccine effectiveness–type study and show clinical protection against either infection or hospitalization – those are going to take a while, simply because of the nature of how many people you need for each of these studies,” he said. “Time will tell whether or not the data that are being presented here will translate literally into protective outcomes downstream.”

The MAJIK Registry is supported by the French Rheumatology Society. The authors acknowledged numerous potential conflicts of interest, including receiving consulting fees, research support, and honoraria from various pharmaceutical companies.

Patients who are being treated with Janus kinase (JAK) inhibitors overall show a high immune response rate to COVID-19 vaccination, one that matches the rates seen in patients on other immunosuppressants, a new study has found.

The patients taking a JAK inhibitor who are most at risk of a diminished response may be those on upadacitinib (Rinvoq) and anyone 65 years or older, wrote Raphaèle Seror, MD, PhD, of Paris-Saclay (France) University and coauthors. The study was published in The Lancet Rheumatology.

To gauge the effectiveness of COVID-19 vaccines in this subset of immunosuppressed patients, the researchers analyzed 113 participants in the MAJIK-SFR Registry, a multicenter study of French patients with rheumatoid or psoriatic arthritis. The participants were treated at 13 centers throughout France; their mean age was 61.8 years (standard deviation, 12.5), and 72% were female. A total of 56 were taking baricitinib (Olumiant), 30 were taking tofacitinib (Xeljanz), and 27 were taking upadacitinib.

Serologic assessment was performed an average of 8.7 weeks (SD, 5.2) after the last dose of vaccine. The overall response rate – defined as the proportion of patients with detectable anti-spike antibodies per manufacturer’s cutoff values – was 88% (100 of 113). The nonresponse rate was higher with upadacitinib (7 of 27 patients, 26%) than with baricitinib (5 of 56, 9%) or tofacitinib (1 of 30, 3%). The only nonresponders who were not age 65 or older were four of the seven who received upadacitinib. The interval between the last vaccine dose and serologic assessment was somewhat longer in nonresponders (11.3 weeks) than in responders (8.3 weeks).

Earlier this year, the American College of Rheumatology recommended withholding JAK inhibitors for 1 week after each vaccine dose because of “concern related to the effects of this medication class on interferon signaling that may result in a diminished vaccine response Only two patients in the study had treatment with JAK inhibitors stopped before or after vaccination.

Questions about antibody levels remain difficult to answer

“This study does further confirm a big point,” said Alfred Kim, MD, PhD, of Washington University, St. Louis, in an interview. “Most people on any sort of immunosuppression, with rare exceptions, can mount responses to COVID-19 vaccination.”

“What level of response is going to be sufficient, of course, is not clear,” he added. “Even though most people generate responses, at the population level those responses seem lower than those in nonimmunosuppressed people. Particularly for those on upadacitinib, which is lower than patients on the other JAK inhibitors. Is that problematic? We don’t know yet.”

Dr. Kim, who was part of a separate, earlier study that assessed vaccine response in patients with chronic inflammatory disease who were being treated with immunosuppressive medications, noted that many of the questions patients are asking about their antibody levels cannot yet be answered.

“It’s kind of the Wild West of serologic testing out there right now,” he said. “Even though we’re recommending that people still don’t check their antibody levels because their results are largely inactionable, everyone is still getting them anyway. But each of these tests are slightly different, and the results and the interpretation are further clouded because of those slight performance differences between each platform.”

Dr. Kim highlighted the number of different tests as one of this study’s notable limitations: 11 different assays were used to determine patients’ immune responses. “The authors made the argument that these tests are FDA approved, and that’s true, but that doesn’t necessarily mean much. Approval does translate to technical reliability but not to comparisons between the tests.”

As for next steps, both the authors and Dr. Kim recognized the need for a prospective trial. “To do a vaccine effectiveness–type study and show clinical protection against either infection or hospitalization – those are going to take a while, simply because of the nature of how many people you need for each of these studies,” he said. “Time will tell whether or not the data that are being presented here will translate literally into protective outcomes downstream.”

The MAJIK Registry is supported by the French Rheumatology Society. The authors acknowledged numerous potential conflicts of interest, including receiving consulting fees, research support, and honoraria from various pharmaceutical companies.

Patients who are being treated with Janus kinase (JAK) inhibitors overall show a high immune response rate to COVID-19 vaccination, one that matches the rates seen in patients on other immunosuppressants, a new study has found.

The patients taking a JAK inhibitor who are most at risk of a diminished response may be those on upadacitinib (Rinvoq) and anyone 65 years or older, wrote Raphaèle Seror, MD, PhD, of Paris-Saclay (France) University and coauthors. The study was published in The Lancet Rheumatology.

To gauge the effectiveness of COVID-19 vaccines in this subset of immunosuppressed patients, the researchers analyzed 113 participants in the MAJIK-SFR Registry, a multicenter study of French patients with rheumatoid or psoriatic arthritis. The participants were treated at 13 centers throughout France; their mean age was 61.8 years (standard deviation, 12.5), and 72% were female. A total of 56 were taking baricitinib (Olumiant), 30 were taking tofacitinib (Xeljanz), and 27 were taking upadacitinib.

Serologic assessment was performed an average of 8.7 weeks (SD, 5.2) after the last dose of vaccine. The overall response rate – defined as the proportion of patients with detectable anti-spike antibodies per manufacturer’s cutoff values – was 88% (100 of 113). The nonresponse rate was higher with upadacitinib (7 of 27 patients, 26%) than with baricitinib (5 of 56, 9%) or tofacitinib (1 of 30, 3%). The only nonresponders who were not age 65 or older were four of the seven who received upadacitinib. The interval between the last vaccine dose and serologic assessment was somewhat longer in nonresponders (11.3 weeks) than in responders (8.3 weeks).

Earlier this year, the American College of Rheumatology recommended withholding JAK inhibitors for 1 week after each vaccine dose because of “concern related to the effects of this medication class on interferon signaling that may result in a diminished vaccine response Only two patients in the study had treatment with JAK inhibitors stopped before or after vaccination.

Questions about antibody levels remain difficult to answer

“This study does further confirm a big point,” said Alfred Kim, MD, PhD, of Washington University, St. Louis, in an interview. “Most people on any sort of immunosuppression, with rare exceptions, can mount responses to COVID-19 vaccination.”

“What level of response is going to be sufficient, of course, is not clear,” he added. “Even though most people generate responses, at the population level those responses seem lower than those in nonimmunosuppressed people. Particularly for those on upadacitinib, which is lower than patients on the other JAK inhibitors. Is that problematic? We don’t know yet.”

Dr. Kim, who was part of a separate, earlier study that assessed vaccine response in patients with chronic inflammatory disease who were being treated with immunosuppressive medications, noted that many of the questions patients are asking about their antibody levels cannot yet be answered.

“It’s kind of the Wild West of serologic testing out there right now,” he said. “Even though we’re recommending that people still don’t check their antibody levels because their results are largely inactionable, everyone is still getting them anyway. But each of these tests are slightly different, and the results and the interpretation are further clouded because of those slight performance differences between each platform.”

Dr. Kim highlighted the number of different tests as one of this study’s notable limitations: 11 different assays were used to determine patients’ immune responses. “The authors made the argument that these tests are FDA approved, and that’s true, but that doesn’t necessarily mean much. Approval does translate to technical reliability but not to comparisons between the tests.”

As for next steps, both the authors and Dr. Kim recognized the need for a prospective trial. “To do a vaccine effectiveness–type study and show clinical protection against either infection or hospitalization – those are going to take a while, simply because of the nature of how many people you need for each of these studies,” he said. “Time will tell whether or not the data that are being presented here will translate literally into protective outcomes downstream.”

The MAJIK Registry is supported by the French Rheumatology Society. The authors acknowledged numerous potential conflicts of interest, including receiving consulting fees, research support, and honoraria from various pharmaceutical companies.

A U.S. Food and Drug Administration (FDA) advisory committee on Oct. 15 voted 19-0 to authorize second doses of the Johnson & Johnson COVID-19 vaccine in an effort to boost immunity. It was the second vote in as many days to back a change to a COVID vaccine timeline.
 

Johnson & Johnson

In its vote, the committee said that boosters could be offered to people as young as age 18. However, it is not clear that everyone who got a Johnson & Johnson vaccine needs to get a second dose. The same panel voted Oct. 14 to recommend booster shots for the Moderna vaccine, but for a narrower group of people.

It will be up to a Centers for Disease Control and Prevention (CDC) panel to make more specific recommendations for who might need another shot. The CDC’s Advisory Committee on Immunization Practices is scheduled to meet next Oct. 21 to discuss issues related to COVID-19 vaccines.

Studies of the effectiveness of the Johnson & Johnson vaccine in the real world show that its protection — while good — has not been as strong as that of the mRNA vaccines made by Pfizer and Moderna, which are given as part of a two-dose series.

In the end, the members of the FDA’s Vaccines and Related Biological Products Advisory Committee said they felt that the company hadn’t made a case for calling their second shot a booster, but had shown enough data to suggest that everyone over the age of 18 should consider getting two shots of the Johnson & Johnson vaccine as a matter of course.

This is an especially important issue for adults over the age of 50. A recent study in the New England Journal of Medicine found that older adults who got the Johnson & Johnson vaccine were less protected against infection and hospitalization than those who got mRNA vaccines.
 

Limited data

The company presented data from six studies to the FDA panel in support of a second dose that were limited. The only study looking at second doses after 6 months included just 17 people.

These studies did show that a second dose substantially increased levels of neutralizing antibodies, which are the body’s first line of protection against COVID-19 infection.

But the company turned this data over to the FDA so recently that agency scientists repeatedly stressed during the meeting that they did not have ample time to follow their normal process of independently verifying the data and following up with their own analysis of the study results.

Peter Marks, MD, director of the FDA’s Center for Biologics Evaluation and Research, said it would have taken months to complete that rigorous level of review.

Instead, in the interest of urgency, the FDA said it had tried to bring some clarity to the tangle of study results presented that included three dosing schedules and different measures of effectiveness.

“Here’s how this strikes me,” said committee member Paul Offit, MD, a professor of pediatrics and infectious disease at Children’s Hospital of Philadelphia. “I think this vaccine was always a two-dose vaccine. I think it’s better as a two-dose vaccine. I think it would be hard to recommend this as a single-dose vaccine at this point.”

“As far as I’m concerned, it was always going to be necessary for J&J recipients to get a second shot,” said James Hildreth, MD, PhD, president and CEO of Meharry Medical College in Nashville.

Archana Chatterjee, MD, PhD, dean of the Chicago Medical School at Rosalind Franklin University of Medicine and Science, said she had changed her vote during the course of the meeting.

She said that, based on the very limited safety and effectiveness data presented to the committee, she was prepared to vote against the idea of offering second doses of Johnson & Johnson shots.

But after considering the 15 million people who have been vaccinated with a single dose and studies that have suggested that close to 5 million older adults may still be at risk for hospitalization because they’ve just had one shot, “This is still a public health imperative,” she said.

“I’m in agreement with most of my colleagues that this second dose, booster, whatever you want to call it, is necessary in these individuals to boost up their immunity back into the 90-plus percentile range,” Dr. Chatterjee said.

Who needs a second dose?

On Oct. 14, the committee heard an update on data from Israel, which saw a wave of severe breakthrough infections during the Delta wave.

COVID-19 cases are falling rapidly there after the country widely deployed booster doses of the Pfizer vaccine.

The FDA’s Dr. Marks said Oct. 15 that the agency was leaning toward creating greater flexibility in the emergency use authorizations (EUAs) for the Johnson & Johnson and Moderna vaccines so that boosters could be more widely deployed in the United States too.

The FDA panel on Oct. 14 voted to authorize a 50-milligram dose of Moderna’s vaccine — half the dose used in the primary series of shots — to boost immunity at least 6 months after the second dose.

Those who might need a Moderna booster are the same groups who’ve gotten a green light for third Pfizer doses, including people over 65, adults at higher risk for severe COVID-19, and those who are at higher risk because of where they live or work.

The FDA asked the committee on Oct. 15 to discuss whether boosters should be offered to younger adults, even those without underlying health conditions.

“We’re concerned that what was seen in Israel could be seen here,” Dr. Marks said. “We don’t want to have a wave of severe COVID-19 before we deploy boosters.”
 

Trying to avoid confusion

Some members of the committee cautioned Dr. Marks to be careful when expanding the EUAs, because it could confuse people.

“When we say immunity is waning, what are the implications of that?” said Michael Kurilla, MD, PhD, director of the division of clinical innovation at the National Institutes of Health.

Overall, data show that all the vaccines currently being used in the United States — including Johnson & Johnson — remain highly effective for preventing severe outcomes from COVID-19, like hospitalization and death.

Booster doses could prevent more people from even getting mild or moderate symptoms from “breakthrough” COVID-19 cases, which began to rise during the recent Delta surge. The additional doses are also expected to prevent severe outcomes like hospitalization in older adults and those with underlying health conditions.

“I think we need to be clear when we say waning immunity and we need to do something about that, I think we need to be clear what we’re really targeting [with boosters] in terms of clinical impact we expect to have,” Dr. Kurilla said.

Others pointed out that preventing even mild-to-moderate infections was a worthy goal, especially considering the implications of long-haul COVID-19.

“COVID does have tremendous downstream effects, even in those who are not hospitalized. Whenever we can prevent significant morbidity in a population, there are advantages to that,” said Steven Pergam, MD, MPH, medical director of infection prevention at the Seattle Cancer Care Alliance.

“I’d really be in the camp that would be moving towards a younger age range for allowing boosters,” he said.
 

This article was updated on 10/18/21. A version of this article first appeared on Medscape.com.

A U.S. Food and Drug Administration (FDA) advisory committee on Oct. 15 voted 19-0 to authorize second doses of the Johnson & Johnson COVID-19 vaccine in an effort to boost immunity. It was the second vote in as many days to back a change to a COVID vaccine timeline.
 

Johnson & Johnson

In its vote, the committee said that boosters could be offered to people as young as age 18. However, it is not clear that everyone who got a Johnson & Johnson vaccine needs to get a second dose. The same panel voted Oct. 14 to recommend booster shots for the Moderna vaccine, but for a narrower group of people.

It will be up to a Centers for Disease Control and Prevention (CDC) panel to make more specific recommendations for who might need another shot. The CDC’s Advisory Committee on Immunization Practices is scheduled to meet next Oct. 21 to discuss issues related to COVID-19 vaccines.

Studies of the effectiveness of the Johnson & Johnson vaccine in the real world show that its protection — while good — has not been as strong as that of the mRNA vaccines made by Pfizer and Moderna, which are given as part of a two-dose series.

In the end, the members of the FDA’s Vaccines and Related Biological Products Advisory Committee said they felt that the company hadn’t made a case for calling their second shot a booster, but had shown enough data to suggest that everyone over the age of 18 should consider getting two shots of the Johnson & Johnson vaccine as a matter of course.

This is an especially important issue for adults over the age of 50. A recent study in the New England Journal of Medicine found that older adults who got the Johnson & Johnson vaccine were less protected against infection and hospitalization than those who got mRNA vaccines.
 

Limited data

The company presented data from six studies to the FDA panel in support of a second dose that were limited. The only study looking at second doses after 6 months included just 17 people.

These studies did show that a second dose substantially increased levels of neutralizing antibodies, which are the body’s first line of protection against COVID-19 infection.

But the company turned this data over to the FDA so recently that agency scientists repeatedly stressed during the meeting that they did not have ample time to follow their normal process of independently verifying the data and following up with their own analysis of the study results.

Peter Marks, MD, director of the FDA’s Center for Biologics Evaluation and Research, said it would have taken months to complete that rigorous level of review.

Instead, in the interest of urgency, the FDA said it had tried to bring some clarity to the tangle of study results presented that included three dosing schedules and different measures of effectiveness.

“Here’s how this strikes me,” said committee member Paul Offit, MD, a professor of pediatrics and infectious disease at Children’s Hospital of Philadelphia. “I think this vaccine was always a two-dose vaccine. I think it’s better as a two-dose vaccine. I think it would be hard to recommend this as a single-dose vaccine at this point.”

“As far as I’m concerned, it was always going to be necessary for J&J recipients to get a second shot,” said James Hildreth, MD, PhD, president and CEO of Meharry Medical College in Nashville.

Archana Chatterjee, MD, PhD, dean of the Chicago Medical School at Rosalind Franklin University of Medicine and Science, said she had changed her vote during the course of the meeting.

She said that, based on the very limited safety and effectiveness data presented to the committee, she was prepared to vote against the idea of offering second doses of Johnson & Johnson shots.

But after considering the 15 million people who have been vaccinated with a single dose and studies that have suggested that close to 5 million older adults may still be at risk for hospitalization because they’ve just had one shot, “This is still a public health imperative,” she said.

“I’m in agreement with most of my colleagues that this second dose, booster, whatever you want to call it, is necessary in these individuals to boost up their immunity back into the 90-plus percentile range,” Dr. Chatterjee said.

Who needs a second dose?

On Oct. 14, the committee heard an update on data from Israel, which saw a wave of severe breakthrough infections during the Delta wave.

COVID-19 cases are falling rapidly there after the country widely deployed booster doses of the Pfizer vaccine.

The FDA’s Dr. Marks said Oct. 15 that the agency was leaning toward creating greater flexibility in the emergency use authorizations (EUAs) for the Johnson & Johnson and Moderna vaccines so that boosters could be more widely deployed in the United States too.

The FDA panel on Oct. 14 voted to authorize a 50-milligram dose of Moderna’s vaccine — half the dose used in the primary series of shots — to boost immunity at least 6 months after the second dose.

Those who might need a Moderna booster are the same groups who’ve gotten a green light for third Pfizer doses, including people over 65, adults at higher risk for severe COVID-19, and those who are at higher risk because of where they live or work.

The FDA asked the committee on Oct. 15 to discuss whether boosters should be offered to younger adults, even those without underlying health conditions.

“We’re concerned that what was seen in Israel could be seen here,” Dr. Marks said. “We don’t want to have a wave of severe COVID-19 before we deploy boosters.”
 

Trying to avoid confusion

Some members of the committee cautioned Dr. Marks to be careful when expanding the EUAs, because it could confuse people.

“When we say immunity is waning, what are the implications of that?” said Michael Kurilla, MD, PhD, director of the division of clinical innovation at the National Institutes of Health.

Overall, data show that all the vaccines currently being used in the United States — including Johnson & Johnson — remain highly effective for preventing severe outcomes from COVID-19, like hospitalization and death.

Booster doses could prevent more people from even getting mild or moderate symptoms from “breakthrough” COVID-19 cases, which began to rise during the recent Delta surge. The additional doses are also expected to prevent severe outcomes like hospitalization in older adults and those with underlying health conditions.

“I think we need to be clear when we say waning immunity and we need to do something about that, I think we need to be clear what we’re really targeting [with boosters] in terms of clinical impact we expect to have,” Dr. Kurilla said.

Others pointed out that preventing even mild-to-moderate infections was a worthy goal, especially considering the implications of long-haul COVID-19.

“COVID does have tremendous downstream effects, even in those who are not hospitalized. Whenever we can prevent significant morbidity in a population, there are advantages to that,” said Steven Pergam, MD, MPH, medical director of infection prevention at the Seattle Cancer Care Alliance.

“I’d really be in the camp that would be moving towards a younger age range for allowing boosters,” he said.
 

This article was updated on 10/18/21. A version of this article first appeared on Medscape.com.

A U.S. Food and Drug Administration (FDA) advisory committee on Oct. 15 voted 19-0 to authorize second doses of the Johnson & Johnson COVID-19 vaccine in an effort to boost immunity. It was the second vote in as many days to back a change to a COVID vaccine timeline.
 

Johnson & Johnson

In its vote, the committee said that boosters could be offered to people as young as age 18. However, it is not clear that everyone who got a Johnson & Johnson vaccine needs to get a second dose. The same panel voted Oct. 14 to recommend booster shots for the Moderna vaccine, but for a narrower group of people.

It will be up to a Centers for Disease Control and Prevention (CDC) panel to make more specific recommendations for who might need another shot. The CDC’s Advisory Committee on Immunization Practices is scheduled to meet next Oct. 21 to discuss issues related to COVID-19 vaccines.

Studies of the effectiveness of the Johnson & Johnson vaccine in the real world show that its protection — while good — has not been as strong as that of the mRNA vaccines made by Pfizer and Moderna, which are given as part of a two-dose series.

In the end, the members of the FDA’s Vaccines and Related Biological Products Advisory Committee said they felt that the company hadn’t made a case for calling their second shot a booster, but had shown enough data to suggest that everyone over the age of 18 should consider getting two shots of the Johnson & Johnson vaccine as a matter of course.

This is an especially important issue for adults over the age of 50. A recent study in the New England Journal of Medicine found that older adults who got the Johnson & Johnson vaccine were less protected against infection and hospitalization than those who got mRNA vaccines.
 

Limited data

The company presented data from six studies to the FDA panel in support of a second dose that were limited. The only study looking at second doses after 6 months included just 17 people.

These studies did show that a second dose substantially increased levels of neutralizing antibodies, which are the body’s first line of protection against COVID-19 infection.

But the company turned this data over to the FDA so recently that agency scientists repeatedly stressed during the meeting that they did not have ample time to follow their normal process of independently verifying the data and following up with their own analysis of the study results.

Peter Marks, MD, director of the FDA’s Center for Biologics Evaluation and Research, said it would have taken months to complete that rigorous level of review.

Instead, in the interest of urgency, the FDA said it had tried to bring some clarity to the tangle of study results presented that included three dosing schedules and different measures of effectiveness.

“Here’s how this strikes me,” said committee member Paul Offit, MD, a professor of pediatrics and infectious disease at Children’s Hospital of Philadelphia. “I think this vaccine was always a two-dose vaccine. I think it’s better as a two-dose vaccine. I think it would be hard to recommend this as a single-dose vaccine at this point.”

“As far as I’m concerned, it was always going to be necessary for J&J recipients to get a second shot,” said James Hildreth, MD, PhD, president and CEO of Meharry Medical College in Nashville.

Archana Chatterjee, MD, PhD, dean of the Chicago Medical School at Rosalind Franklin University of Medicine and Science, said she had changed her vote during the course of the meeting.

She said that, based on the very limited safety and effectiveness data presented to the committee, she was prepared to vote against the idea of offering second doses of Johnson & Johnson shots.

But after considering the 15 million people who have been vaccinated with a single dose and studies that have suggested that close to 5 million older adults may still be at risk for hospitalization because they’ve just had one shot, “This is still a public health imperative,” she said.

“I’m in agreement with most of my colleagues that this second dose, booster, whatever you want to call it, is necessary in these individuals to boost up their immunity back into the 90-plus percentile range,” Dr. Chatterjee said.

Who needs a second dose?

On Oct. 14, the committee heard an update on data from Israel, which saw a wave of severe breakthrough infections during the Delta wave.

COVID-19 cases are falling rapidly there after the country widely deployed booster doses of the Pfizer vaccine.

The FDA’s Dr. Marks said Oct. 15 that the agency was leaning toward creating greater flexibility in the emergency use authorizations (EUAs) for the Johnson & Johnson and Moderna vaccines so that boosters could be more widely deployed in the United States too.

The FDA panel on Oct. 14 voted to authorize a 50-milligram dose of Moderna’s vaccine — half the dose used in the primary series of shots — to boost immunity at least 6 months after the second dose.

Those who might need a Moderna booster are the same groups who’ve gotten a green light for third Pfizer doses, including people over 65, adults at higher risk for severe COVID-19, and those who are at higher risk because of where they live or work.

The FDA asked the committee on Oct. 15 to discuss whether boosters should be offered to younger adults, even those without underlying health conditions.

“We’re concerned that what was seen in Israel could be seen here,” Dr. Marks said. “We don’t want to have a wave of severe COVID-19 before we deploy boosters.”
 

Trying to avoid confusion

Some members of the committee cautioned Dr. Marks to be careful when expanding the EUAs, because it could confuse people.

“When we say immunity is waning, what are the implications of that?” said Michael Kurilla, MD, PhD, director of the division of clinical innovation at the National Institutes of Health.

Overall, data show that all the vaccines currently being used in the United States — including Johnson & Johnson — remain highly effective for preventing severe outcomes from COVID-19, like hospitalization and death.

Booster doses could prevent more people from even getting mild or moderate symptoms from “breakthrough” COVID-19 cases, which began to rise during the recent Delta surge. The additional doses are also expected to prevent severe outcomes like hospitalization in older adults and those with underlying health conditions.

“I think we need to be clear when we say waning immunity and we need to do something about that, I think we need to be clear what we’re really targeting [with boosters] in terms of clinical impact we expect to have,” Dr. Kurilla said.

Others pointed out that preventing even mild-to-moderate infections was a worthy goal, especially considering the implications of long-haul COVID-19.

“COVID does have tremendous downstream effects, even in those who are not hospitalized. Whenever we can prevent significant morbidity in a population, there are advantages to that,” said Steven Pergam, MD, MPH, medical director of infection prevention at the Seattle Cancer Care Alliance.

“I’d really be in the camp that would be moving towards a younger age range for allowing boosters,” he said.
 

This article was updated on 10/18/21. A version of this article first appeared on Medscape.com.

A new U.S. government study shows it isn’t risky and may even be a good idea to mix, rather than match, COVID-19 vaccines when getting a booster dose.

The study also shows mixing different kinds of vaccines appears to spur the body to make higher levels of virus-blocking antibodies than they would have gotten by boosting with a dose of the vaccine the person already had.

If regulators endorse the study findings, it should make getting a COVID-19 booster as easy as getting a yearly influenza vaccine.

“Currently when you go to do your flu shot nobody asks you what kind you had last year. Nobody cares what you had last year. And we were hoping that that was the same — that we would be able to boost regardless of what you had [previously],” said the study’s senior author, John Beigel, MD, who is associate director for clinical research in the division of microbiology and infectious diseases at the National Institutes of Health.

“But we needed to have the data,” he said.

Studies have suggested that higher antibody levels translate into better protection against disease, though the exact level that confers protection is not yet known.

“The antibody responses are so much higher [with mix and match], it’s really impressive,” said William Schaffner, MD, an infectious disease specialist at Vanderbilt University in Nashville, who was not involved in the study.

Dr. Shaffner said if the U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) sign off on the approach, he would especially recommend that people who got the Johnson & Johnson vaccine follow up with a dose of an mRNA vaccine from Pfizer or Moderna.

“It is a broader stimulation of the immune system, and I think that broader stimulation is advantageous,” he said.

Minimal side effects

The preprint study was published late Oct. 13 in medRxiv ahead of peer review, just before a slate of meetings involving vaccine experts that advise the FDA and CDC. 

These experts are tasked with trying to figure out whether additional shots of Moderna and Johnson & Johnson vaccines are safe and effective for boosting immunity against COVID-19.

The FDA’s panel is the Vaccines and Related Biological Products Advisory Committee (VRBPAC), and the CDC’s panel is the Advisory Committee on Immunization Practices (ACIP). 

During the pandemic, they have been meeting almost in lock step to tackle important vaccine-related questions.

“We got this data out because we knew VRBPAC was coming and we knew ACIP was going to grapple with these issues,” Dr. Beigel said.

He noted that these are just the first results. The study will continue for a year, and the researchers aim to deeply characterize the breadth and depth of the immune response to all nine of the different vaccine combinations included in the study.

The study included 458 participants at 10 study sites around the country who had been fully vaccinated with one of the three COVID-19 vaccines authorized for use in the United States: Moderna, Johnson & Johnson, or Pfizer-BioNTech. 

About 150 study participants were recruited from each group. Everyone in the study had finished their primary series at least 12 weeks before starting the study. None had a prior SARS-CoV-2 infection.

About 50 participants from each vaccine group were randomly assigned to get a third (booster) dose of either the same vaccine as the one they had already received, or a different vaccine, creating nine possible combinations of shots.

About half of study participants reported mild side effects — including pain at the injection site, fatigue, headache, and muscle aches.

Two study participants had serious medical problems during the study, but they were judged to be unrelated to vaccination. One study participant experienced kidney failure after their muscles broke down following a fall. The other experienced cholecystitis, or an inflamed gallbladder. 

Up to 1 month after the booster shots, no other serious adverse events were seen.

The study didn’t look at whether people got COVID-19, so it’s not possible to say that they were better protected against disease after their boosters.

Increase in antibodies

But all the groups saw substantial increases in their antibody levels, which is thought to indicate that they were better protected.

Overall, groups that got the same vaccine as their primary series saw 4 to 20-fold increases in their antibody levels. Groups that got different shots than the ones in their primary series got 6 to 76 fold increases in their antibody levels.

People who had originally gotten a Johnson & Johnson vaccine saw far bigger increases in antibodies, and were more likely to see a protective rise in antibodies if they got a second dose of an mRNA vaccine.

Dr. Schaffner noted that European countries had already been mixing the vaccine doses this way, giving people who had received the AstraZeneca vaccine, which is similar to the Johnson & Johnson shot, another dose of an mRNA vaccine.

German Chancellor Angela Merkel received a Moderna vaccine for her second dose after an initial shot of the Oxford-AstraZeneca vaccines, for example.

No safety signals related to mixing vaccines has been seen in countries that routinely use the approach for their initial series.

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

A new U.S. government study shows it isn’t risky and may even be a good idea to mix, rather than match, COVID-19 vaccines when getting a booster dose.

The study also shows mixing different kinds of vaccines appears to spur the body to make higher levels of virus-blocking antibodies than they would have gotten by boosting with a dose of the vaccine the person already had.

If regulators endorse the study findings, it should make getting a COVID-19 booster as easy as getting a yearly influenza vaccine.

“Currently when you go to do your flu shot nobody asks you what kind you had last year. Nobody cares what you had last year. And we were hoping that that was the same — that we would be able to boost regardless of what you had [previously],” said the study’s senior author, John Beigel, MD, who is associate director for clinical research in the division of microbiology and infectious diseases at the National Institutes of Health.

“But we needed to have the data,” he said.

Studies have suggested that higher antibody levels translate into better protection against disease, though the exact level that confers protection is not yet known.

“The antibody responses are so much higher [with mix and match], it’s really impressive,” said William Schaffner, MD, an infectious disease specialist at Vanderbilt University in Nashville, who was not involved in the study.

Dr. Shaffner said if the U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) sign off on the approach, he would especially recommend that people who got the Johnson & Johnson vaccine follow up with a dose of an mRNA vaccine from Pfizer or Moderna.

“It is a broader stimulation of the immune system, and I think that broader stimulation is advantageous,” he said.

Minimal side effects

The preprint study was published late Oct. 13 in medRxiv ahead of peer review, just before a slate of meetings involving vaccine experts that advise the FDA and CDC. 

These experts are tasked with trying to figure out whether additional shots of Moderna and Johnson & Johnson vaccines are safe and effective for boosting immunity against COVID-19.

The FDA’s panel is the Vaccines and Related Biological Products Advisory Committee (VRBPAC), and the CDC’s panel is the Advisory Committee on Immunization Practices (ACIP). 

During the pandemic, they have been meeting almost in lock step to tackle important vaccine-related questions.

“We got this data out because we knew VRBPAC was coming and we knew ACIP was going to grapple with these issues,” Dr. Beigel said.

He noted that these are just the first results. The study will continue for a year, and the researchers aim to deeply characterize the breadth and depth of the immune response to all nine of the different vaccine combinations included in the study.

The study included 458 participants at 10 study sites around the country who had been fully vaccinated with one of the three COVID-19 vaccines authorized for use in the United States: Moderna, Johnson & Johnson, or Pfizer-BioNTech. 

About 150 study participants were recruited from each group. Everyone in the study had finished their primary series at least 12 weeks before starting the study. None had a prior SARS-CoV-2 infection.

About 50 participants from each vaccine group were randomly assigned to get a third (booster) dose of either the same vaccine as the one they had already received, or a different vaccine, creating nine possible combinations of shots.

About half of study participants reported mild side effects — including pain at the injection site, fatigue, headache, and muscle aches.

Two study participants had serious medical problems during the study, but they were judged to be unrelated to vaccination. One study participant experienced kidney failure after their muscles broke down following a fall. The other experienced cholecystitis, or an inflamed gallbladder. 

Up to 1 month after the booster shots, no other serious adverse events were seen.

The study didn’t look at whether people got COVID-19, so it’s not possible to say that they were better protected against disease after their boosters.

Increase in antibodies

But all the groups saw substantial increases in their antibody levels, which is thought to indicate that they were better protected.

Overall, groups that got the same vaccine as their primary series saw 4 to 20-fold increases in their antibody levels. Groups that got different shots than the ones in their primary series got 6 to 76 fold increases in their antibody levels.

People who had originally gotten a Johnson & Johnson vaccine saw far bigger increases in antibodies, and were more likely to see a protective rise in antibodies if they got a second dose of an mRNA vaccine.

Dr. Schaffner noted that European countries had already been mixing the vaccine doses this way, giving people who had received the AstraZeneca vaccine, which is similar to the Johnson & Johnson shot, another dose of an mRNA vaccine.

German Chancellor Angela Merkel received a Moderna vaccine for her second dose after an initial shot of the Oxford-AstraZeneca vaccines, for example.

No safety signals related to mixing vaccines has been seen in countries that routinely use the approach for their initial series.

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

A new U.S. government study shows it isn’t risky and may even be a good idea to mix, rather than match, COVID-19 vaccines when getting a booster dose.

The study also shows mixing different kinds of vaccines appears to spur the body to make higher levels of virus-blocking antibodies than they would have gotten by boosting with a dose of the vaccine the person already had.

If regulators endorse the study findings, it should make getting a COVID-19 booster as easy as getting a yearly influenza vaccine.

“Currently when you go to do your flu shot nobody asks you what kind you had last year. Nobody cares what you had last year. And we were hoping that that was the same — that we would be able to boost regardless of what you had [previously],” said the study’s senior author, John Beigel, MD, who is associate director for clinical research in the division of microbiology and infectious diseases at the National Institutes of Health.

“But we needed to have the data,” he said.

Studies have suggested that higher antibody levels translate into better protection against disease, though the exact level that confers protection is not yet known.

“The antibody responses are so much higher [with mix and match], it’s really impressive,” said William Schaffner, MD, an infectious disease specialist at Vanderbilt University in Nashville, who was not involved in the study.

Dr. Shaffner said if the U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC) sign off on the approach, he would especially recommend that people who got the Johnson & Johnson vaccine follow up with a dose of an mRNA vaccine from Pfizer or Moderna.

“It is a broader stimulation of the immune system, and I think that broader stimulation is advantageous,” he said.

Minimal side effects

The preprint study was published late Oct. 13 in medRxiv ahead of peer review, just before a slate of meetings involving vaccine experts that advise the FDA and CDC. 

These experts are tasked with trying to figure out whether additional shots of Moderna and Johnson & Johnson vaccines are safe and effective for boosting immunity against COVID-19.

The FDA’s panel is the Vaccines and Related Biological Products Advisory Committee (VRBPAC), and the CDC’s panel is the Advisory Committee on Immunization Practices (ACIP). 

During the pandemic, they have been meeting almost in lock step to tackle important vaccine-related questions.

“We got this data out because we knew VRBPAC was coming and we knew ACIP was going to grapple with these issues,” Dr. Beigel said.

He noted that these are just the first results. The study will continue for a year, and the researchers aim to deeply characterize the breadth and depth of the immune response to all nine of the different vaccine combinations included in the study.

The study included 458 participants at 10 study sites around the country who had been fully vaccinated with one of the three COVID-19 vaccines authorized for use in the United States: Moderna, Johnson & Johnson, or Pfizer-BioNTech. 

About 150 study participants were recruited from each group. Everyone in the study had finished their primary series at least 12 weeks before starting the study. None had a prior SARS-CoV-2 infection.

About 50 participants from each vaccine group were randomly assigned to get a third (booster) dose of either the same vaccine as the one they had already received, or a different vaccine, creating nine possible combinations of shots.

About half of study participants reported mild side effects — including pain at the injection site, fatigue, headache, and muscle aches.

Two study participants had serious medical problems during the study, but they were judged to be unrelated to vaccination. One study participant experienced kidney failure after their muscles broke down following a fall. The other experienced cholecystitis, or an inflamed gallbladder. 

Up to 1 month after the booster shots, no other serious adverse events were seen.

The study didn’t look at whether people got COVID-19, so it’s not possible to say that they were better protected against disease after their boosters.

Increase in antibodies

But all the groups saw substantial increases in their antibody levels, which is thought to indicate that they were better protected.

Overall, groups that got the same vaccine as their primary series saw 4 to 20-fold increases in their antibody levels. Groups that got different shots than the ones in their primary series got 6 to 76 fold increases in their antibody levels.

People who had originally gotten a Johnson & Johnson vaccine saw far bigger increases in antibodies, and were more likely to see a protective rise in antibodies if they got a second dose of an mRNA vaccine.

Dr. Schaffner noted that European countries had already been mixing the vaccine doses this way, giving people who had received the AstraZeneca vaccine, which is similar to the Johnson & Johnson shot, another dose of an mRNA vaccine.

German Chancellor Angela Merkel received a Moderna vaccine for her second dose after an initial shot of the Oxford-AstraZeneca vaccines, for example.

No safety signals related to mixing vaccines has been seen in countries that routinely use the approach for their initial series.

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

The proportion of children caught up on vaccinations is lower than 2019 levels, despite an increase in weekly vaccine administration among children from summer to fall 2020.

The finding, published in JAMA Pediatrics, joins a growing collection of studies examining the COVID-19 pandemic’s effect on routine pediatric vaccine delivery. A 2021 survey from the Urban Institute that found that nearly one in five parents delayed or did not get care for their children in the past 12 months because of fear of exposure to the virus.

“We need to think about what additional interventions are needed to promote catch-up vaccination, especially for those at-risk populations that we saw were undervaccinated even prior to the pandemic,” study author Malini B. DeSilva, MD, MPH, said in an interview. “[That means] working creatively to ensure that all children would have the opportunity to receive these recommended vaccines.”

While examining data on pediatric vaccination of 1.4 million children between Jan. 5, 2020, and Oct. 3, 2020, across eight health systems in California, Oregon, Washington, Colorado, Minnesota, and Wisconsin, Dr. DeSilva and colleagues saw vaccination administration rates return to near prepandemic levels after an initial decline, particularly after the Centers for Disease Control and Prevention and American Academy of Pediatrics guidelines specified that in-person visits for children younger than 2 years should be prioritized.

“I think we’ve all been concerned and aware that people just weren’t bringing their children to their pediatricians as frequently [caused by] the fear of being in medical settings during the heat of the pandemic,” said James Schneider, MD, who was not involved with the study. “So it’s not surprising that we saw lower rates of overall vaccinations in all age groups.”

The current study found that lower vaccination rates persisted among most age groups from March to September 2020. However, during the period of expanded primary care, which took place between May and October 2020, vaccination administration rates in infants younger than 2 years old and children aged 4-6 years approached or were equal to 2019 rates. However, these rebounds were not enough to make up for the missed vaccines.

Still, only 74% of infants reaching 7 months old in September 2020 were caught up on their vaccinations, compared with 81% of infants turning the same age in 2019. Researchers also found that, compared with 61% of infants reaching 18 months in September 2019, only 57% of 18-month-olds were up to date with vaccinations in September 2020. However, the proportion of 6-, 13-, and 18-year-olds up to date on vaccinations were about the same in 2020 and 2019.

Racial disparities also persisted during this time, with Black children having the lowest proportion of up-to-date vaccinations for most ages from January to September 2020. Although these disparities were evident prior to the pandemic, these differences became more pronounced for the 18-month-old age group, where just 41% of Black infants were up to date in vaccinations, compared with 76% of Asian infants, 54% of Hispanics infants, and 56% of White infants.

Dr. Schneider believes Dr. DeSilva’s study is a “robust” one and paints an accurate picture of the pandemic’s effect on pediatric vaccinations, despite examining data from just eight health systems.

“I think it’s a fairly reasonable representation of what we already have been recognizing during the pandemic,” he explained. “Which is that people are really reluctant to go to their physicians’ offices for routine care because of the fear of getting sick. I think the study emphasized the importance of catching these children up to keep them safe in the future.”

The Advisory Committee on Immunization Practices recommends a childhood immunization schedule that protects children against 14 infectious diseases before their second birthday. Since the on-time administration of these vaccines is essential for preventing communicable diseases, many pediatric offices are trying to ensure a safe environment for patients and families, said Dr. Schneider, chief of pediatric critical care at Cohen Children’s Medical Center, New York.

There’s also some concern that COVID-19 vaccine hesitancy my spillover into routine childhood vaccinations, especially for families who were already hesitant toward the routine well-established vaccine schedule for children.

The CDC and AAP recommend that children continue to receive recommended vaccinations during the COVID-19 pandemic.

To boost the number of children caught up on vaccinations, health system and community-level interventions are needed, especially in underserved communities, the researchers wrote. Additionally, enforcing mandates that require vaccination prior to school entry could also increase vaccine administration across populations and reduce disparities.

The study emphasizes the “immediate and lagging” disruptions in the delivery of pediatric health care caused by the pandemic, which will likely have long-term consequences for pediatric health, Brian P. Jenssen, MD, MSHP, who was not involved in the study, wrote in a solicited commentary.

However, interventions tailored to specific age groups could help remedy this. These include increasing the frequency of well-child care during the next year of life for infants younger than 24 months and prioritizing visits with 13-year-old adolescents who are behind on vaccinations.

“Although there is no evidence base for this approach, such a change could create not only catch-up opportunities for vaccination for children delayed at age 7 and 18 months, but also provide opportunities to attend to developmental concerns and social needs that have emerged during COVID-19,” wrote Dr. Jenssen, a researcher and primary care pediatrician at Children’s Hospital of Philadelphia.

Other practices such as reaching out to patients and families directly via text message, email, or phone to “notify them of needed vaccinations,” vaccine mandates, and having pediatric health systems partner with alternative settings to promote vaccination could also get kids back on track, health wise. Furthermore, financial incentives from insurers or primary care practices also may help.

“The COVID-19 pandemic’s lost care may have long-term consequences unless pediatric health care systems and child health advocates are proactive in engaging families to take advantage of every opportunity to catch up,” Dr. Jenssen wrote.

The proportion of children caught up on vaccinations is lower than 2019 levels, despite an increase in weekly vaccine administration among children from summer to fall 2020.

The finding, published in JAMA Pediatrics, joins a growing collection of studies examining the COVID-19 pandemic’s effect on routine pediatric vaccine delivery. A 2021 survey from the Urban Institute that found that nearly one in five parents delayed or did not get care for their children in the past 12 months because of fear of exposure to the virus.

“We need to think about what additional interventions are needed to promote catch-up vaccination, especially for those at-risk populations that we saw were undervaccinated even prior to the pandemic,” study author Malini B. DeSilva, MD, MPH, said in an interview. “[That means] working creatively to ensure that all children would have the opportunity to receive these recommended vaccines.”

While examining data on pediatric vaccination of 1.4 million children between Jan. 5, 2020, and Oct. 3, 2020, across eight health systems in California, Oregon, Washington, Colorado, Minnesota, and Wisconsin, Dr. DeSilva and colleagues saw vaccination administration rates return to near prepandemic levels after an initial decline, particularly after the Centers for Disease Control and Prevention and American Academy of Pediatrics guidelines specified that in-person visits for children younger than 2 years should be prioritized.

“I think we’ve all been concerned and aware that people just weren’t bringing their children to their pediatricians as frequently [caused by] the fear of being in medical settings during the heat of the pandemic,” said James Schneider, MD, who was not involved with the study. “So it’s not surprising that we saw lower rates of overall vaccinations in all age groups.”

The current study found that lower vaccination rates persisted among most age groups from March to September 2020. However, during the period of expanded primary care, which took place between May and October 2020, vaccination administration rates in infants younger than 2 years old and children aged 4-6 years approached or were equal to 2019 rates. However, these rebounds were not enough to make up for the missed vaccines.

Still, only 74% of infants reaching 7 months old in September 2020 were caught up on their vaccinations, compared with 81% of infants turning the same age in 2019. Researchers also found that, compared with 61% of infants reaching 18 months in September 2019, only 57% of 18-month-olds were up to date with vaccinations in September 2020. However, the proportion of 6-, 13-, and 18-year-olds up to date on vaccinations were about the same in 2020 and 2019.

Racial disparities also persisted during this time, with Black children having the lowest proportion of up-to-date vaccinations for most ages from January to September 2020. Although these disparities were evident prior to the pandemic, these differences became more pronounced for the 18-month-old age group, where just 41% of Black infants were up to date in vaccinations, compared with 76% of Asian infants, 54% of Hispanics infants, and 56% of White infants.

Dr. Schneider believes Dr. DeSilva’s study is a “robust” one and paints an accurate picture of the pandemic’s effect on pediatric vaccinations, despite examining data from just eight health systems.

“I think it’s a fairly reasonable representation of what we already have been recognizing during the pandemic,” he explained. “Which is that people are really reluctant to go to their physicians’ offices for routine care because of the fear of getting sick. I think the study emphasized the importance of catching these children up to keep them safe in the future.”

The Advisory Committee on Immunization Practices recommends a childhood immunization schedule that protects children against 14 infectious diseases before their second birthday. Since the on-time administration of these vaccines is essential for preventing communicable diseases, many pediatric offices are trying to ensure a safe environment for patients and families, said Dr. Schneider, chief of pediatric critical care at Cohen Children’s Medical Center, New York.

There’s also some concern that COVID-19 vaccine hesitancy my spillover into routine childhood vaccinations, especially for families who were already hesitant toward the routine well-established vaccine schedule for children.

The CDC and AAP recommend that children continue to receive recommended vaccinations during the COVID-19 pandemic.

To boost the number of children caught up on vaccinations, health system and community-level interventions are needed, especially in underserved communities, the researchers wrote. Additionally, enforcing mandates that require vaccination prior to school entry could also increase vaccine administration across populations and reduce disparities.

The study emphasizes the “immediate and lagging” disruptions in the delivery of pediatric health care caused by the pandemic, which will likely have long-term consequences for pediatric health, Brian P. Jenssen, MD, MSHP, who was not involved in the study, wrote in a solicited commentary.

However, interventions tailored to specific age groups could help remedy this. These include increasing the frequency of well-child care during the next year of life for infants younger than 24 months and prioritizing visits with 13-year-old adolescents who are behind on vaccinations.

“Although there is no evidence base for this approach, such a change could create not only catch-up opportunities for vaccination for children delayed at age 7 and 18 months, but also provide opportunities to attend to developmental concerns and social needs that have emerged during COVID-19,” wrote Dr. Jenssen, a researcher and primary care pediatrician at Children’s Hospital of Philadelphia.

Other practices such as reaching out to patients and families directly via text message, email, or phone to “notify them of needed vaccinations,” vaccine mandates, and having pediatric health systems partner with alternative settings to promote vaccination could also get kids back on track, health wise. Furthermore, financial incentives from insurers or primary care practices also may help.

“The COVID-19 pandemic’s lost care may have long-term consequences unless pediatric health care systems and child health advocates are proactive in engaging families to take advantage of every opportunity to catch up,” Dr. Jenssen wrote.

The proportion of children caught up on vaccinations is lower than 2019 levels, despite an increase in weekly vaccine administration among children from summer to fall 2020.

The finding, published in JAMA Pediatrics, joins a growing collection of studies examining the COVID-19 pandemic’s effect on routine pediatric vaccine delivery. A 2021 survey from the Urban Institute that found that nearly one in five parents delayed or did not get care for their children in the past 12 months because of fear of exposure to the virus.

“We need to think about what additional interventions are needed to promote catch-up vaccination, especially for those at-risk populations that we saw were undervaccinated even prior to the pandemic,” study author Malini B. DeSilva, MD, MPH, said in an interview. “[That means] working creatively to ensure that all children would have the opportunity to receive these recommended vaccines.”

While examining data on pediatric vaccination of 1.4 million children between Jan. 5, 2020, and Oct. 3, 2020, across eight health systems in California, Oregon, Washington, Colorado, Minnesota, and Wisconsin, Dr. DeSilva and colleagues saw vaccination administration rates return to near prepandemic levels after an initial decline, particularly after the Centers for Disease Control and Prevention and American Academy of Pediatrics guidelines specified that in-person visits for children younger than 2 years should be prioritized.

“I think we’ve all been concerned and aware that people just weren’t bringing their children to their pediatricians as frequently [caused by] the fear of being in medical settings during the heat of the pandemic,” said James Schneider, MD, who was not involved with the study. “So it’s not surprising that we saw lower rates of overall vaccinations in all age groups.”

The current study found that lower vaccination rates persisted among most age groups from March to September 2020. However, during the period of expanded primary care, which took place between May and October 2020, vaccination administration rates in infants younger than 2 years old and children aged 4-6 years approached or were equal to 2019 rates. However, these rebounds were not enough to make up for the missed vaccines.

Still, only 74% of infants reaching 7 months old in September 2020 were caught up on their vaccinations, compared with 81% of infants turning the same age in 2019. Researchers also found that, compared with 61% of infants reaching 18 months in September 2019, only 57% of 18-month-olds were up to date with vaccinations in September 2020. However, the proportion of 6-, 13-, and 18-year-olds up to date on vaccinations were about the same in 2020 and 2019.

Racial disparities also persisted during this time, with Black children having the lowest proportion of up-to-date vaccinations for most ages from January to September 2020. Although these disparities were evident prior to the pandemic, these differences became more pronounced for the 18-month-old age group, where just 41% of Black infants were up to date in vaccinations, compared with 76% of Asian infants, 54% of Hispanics infants, and 56% of White infants.

Dr. Schneider believes Dr. DeSilva’s study is a “robust” one and paints an accurate picture of the pandemic’s effect on pediatric vaccinations, despite examining data from just eight health systems.

“I think it’s a fairly reasonable representation of what we already have been recognizing during the pandemic,” he explained. “Which is that people are really reluctant to go to their physicians’ offices for routine care because of the fear of getting sick. I think the study emphasized the importance of catching these children up to keep them safe in the future.”

The Advisory Committee on Immunization Practices recommends a childhood immunization schedule that protects children against 14 infectious diseases before their second birthday. Since the on-time administration of these vaccines is essential for preventing communicable diseases, many pediatric offices are trying to ensure a safe environment for patients and families, said Dr. Schneider, chief of pediatric critical care at Cohen Children’s Medical Center, New York.

There’s also some concern that COVID-19 vaccine hesitancy my spillover into routine childhood vaccinations, especially for families who were already hesitant toward the routine well-established vaccine schedule for children.

The CDC and AAP recommend that children continue to receive recommended vaccinations during the COVID-19 pandemic.

To boost the number of children caught up on vaccinations, health system and community-level interventions are needed, especially in underserved communities, the researchers wrote. Additionally, enforcing mandates that require vaccination prior to school entry could also increase vaccine administration across populations and reduce disparities.

The study emphasizes the “immediate and lagging” disruptions in the delivery of pediatric health care caused by the pandemic, which will likely have long-term consequences for pediatric health, Brian P. Jenssen, MD, MSHP, who was not involved in the study, wrote in a solicited commentary.

However, interventions tailored to specific age groups could help remedy this. These include increasing the frequency of well-child care during the next year of life for infants younger than 24 months and prioritizing visits with 13-year-old adolescents who are behind on vaccinations.

“Although there is no evidence base for this approach, such a change could create not only catch-up opportunities for vaccination for children delayed at age 7 and 18 months, but also provide opportunities to attend to developmental concerns and social needs that have emerged during COVID-19,” wrote Dr. Jenssen, a researcher and primary care pediatrician at Children’s Hospital of Philadelphia.

Other practices such as reaching out to patients and families directly via text message, email, or phone to “notify them of needed vaccinations,” vaccine mandates, and having pediatric health systems partner with alternative settings to promote vaccination could also get kids back on track, health wise. Furthermore, financial incentives from insurers or primary care practices also may help.

“The COVID-19 pandemic’s lost care may have long-term consequences unless pediatric health care systems and child health advocates are proactive in engaging families to take advantage of every opportunity to catch up,” Dr. Jenssen wrote.

A panel of experts that advises the Food and Drug Administration on vaccine decisions voted unanimously Oct. 14 to approve booster doses of Moderna’s COVID-19 vaccine.

The 19 members of the FDA’s Vaccines and Related Biological Products Advisory Committee voted to authorize a 50-milligram dose -- half the dose used in the primary series of shots -- to boost immunity against COVID-19 at least 6 months after the second dose. Those who might need a booster are the same groups who’ve gotten a green light for third Pfizer doses. They include people:

• Over age 65
• Ages 18 to 64 who are at higher risk for severe COVID
• Who are at higher risk of catching COVID because they live in group settings like nursing homes or prisons, or because they are frequently exposed at work, as health care workers are

The agency is not bound by the committee’s vote but usually follows its recommendations.

Some members of the committee said they weren’t satisfied with the data Moderna submitted to support its application but, for practical reasons, said it wouldn’t be fair to take booster doses off the table for Moderna recipients when Pfizer’s boosters were already available.

“The data are not perfect, but these are extraordinary times and we have to work with data that are not perfect,” said Eric Rubin, MD, editor-in-chief of TheNew England Journal of Medicine and a temporary voting member on the committee.

Patrick Moore, MD, a professor at the University of Pittsburgh Cancer Institute who is also a temporary voting member, said he voted to approve the Moderna boosters based “more on a gut feeling than on truly serious data.”

“I’ve got some real issues with this vote,” he said.

“We need to see good solid data, and it needs to be explained well,” Dr. Moore said, challenging companies making future applications to do better.

Next, the FDA will have to formally sign off on the emergency use authorization, which it is expected to do. Then, the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices will meet to make formal recommendations on use of the Moderna boosters. That group is scheduled to meet Oct. 21 to take up questions of exactly how these boosters should be used.

Peter Marks, MD, head of the FDA’s Center for Biologics Evaluation and Research, cautioned that the CDC is more constrained in making recommendations under an emergency use authorization than it would be if the boosters had gotten full approval. So it will likely align its vote with the conditions of the emergency use authorization from the FDA.

After the advisory committee votes, the director of the CDC has to approve its recommendation.

Overall, data show that two doses of the Moderna vaccine remains highly effective at preventing hospitalization and death. But over time, levels of the body’s first line of defense against a virus -- its neutralizing antibodies -- fall somewhat. This drop seems to correspond with an increased risk for breakthrough cases of COVID-19.

Data presented by Moderna Oct. 14 showed the risk of breakthrough infections increased by 36% in study participants who received the vaccine in their clinical trials, compared to people in the same study who received a placebo first, and got the vaccine later, when the trial was unblended. Their protection was more recent, and they had fewer breakthrough infections.

In considering booster doses, the FDA has asked drugmakers to do studies that look at the immune responses of small groups of study participants and compare them to the immune responses seen in study participants after their first two vaccine doses.

To be considered effective, boosters have to clear two bars. The first looks at the concentration of antibodies generated in the blood of boosted study volunteers. The second looks at how many boosted study participants saw a four-fold increase in their blood antibody levels a month after the booster minus the number of people who saw the same increase after their original two doses.

Moderna presented data that its boosters met the first criteria, but failed to meet the second, perhaps because so many people in the study had good responses after their first two doses of the vaccines.

The FDA’s advisory committee will reconvene Oct. 15 to hear evidence supporting the emergency use authorization of a booster dose of the Johnson & Johnson vaccine.

This article was updated Oct. 15 and first appeared on WebMD.com.

A panel of experts that advises the Food and Drug Administration on vaccine decisions voted unanimously Oct. 14 to approve booster doses of Moderna’s COVID-19 vaccine.

The 19 members of the FDA’s Vaccines and Related Biological Products Advisory Committee voted to authorize a 50-milligram dose -- half the dose used in the primary series of shots -- to boost immunity against COVID-19 at least 6 months after the second dose. Those who might need a booster are the same groups who’ve gotten a green light for third Pfizer doses. They include people:

• Over age 65
• Ages 18 to 64 who are at higher risk for severe COVID
• Who are at higher risk of catching COVID because they live in group settings like nursing homes or prisons, or because they are frequently exposed at work, as health care workers are

The agency is not bound by the committee’s vote but usually follows its recommendations.

Some members of the committee said they weren’t satisfied with the data Moderna submitted to support its application but, for practical reasons, said it wouldn’t be fair to take booster doses off the table for Moderna recipients when Pfizer’s boosters were already available.

“The data are not perfect, but these are extraordinary times and we have to work with data that are not perfect,” said Eric Rubin, MD, editor-in-chief of TheNew England Journal of Medicine and a temporary voting member on the committee.

Patrick Moore, MD, a professor at the University of Pittsburgh Cancer Institute who is also a temporary voting member, said he voted to approve the Moderna boosters based “more on a gut feeling than on truly serious data.”

“I’ve got some real issues with this vote,” he said.

“We need to see good solid data, and it needs to be explained well,” Dr. Moore said, challenging companies making future applications to do better.

Next, the FDA will have to formally sign off on the emergency use authorization, which it is expected to do. Then, the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices will meet to make formal recommendations on use of the Moderna boosters. That group is scheduled to meet Oct. 21 to take up questions of exactly how these boosters should be used.

Peter Marks, MD, head of the FDA’s Center for Biologics Evaluation and Research, cautioned that the CDC is more constrained in making recommendations under an emergency use authorization than it would be if the boosters had gotten full approval. So it will likely align its vote with the conditions of the emergency use authorization from the FDA.

After the advisory committee votes, the director of the CDC has to approve its recommendation.

Overall, data show that two doses of the Moderna vaccine remains highly effective at preventing hospitalization and death. But over time, levels of the body’s first line of defense against a virus -- its neutralizing antibodies -- fall somewhat. This drop seems to correspond with an increased risk for breakthrough cases of COVID-19.

Data presented by Moderna Oct. 14 showed the risk of breakthrough infections increased by 36% in study participants who received the vaccine in their clinical trials, compared to people in the same study who received a placebo first, and got the vaccine later, when the trial was unblended. Their protection was more recent, and they had fewer breakthrough infections.

In considering booster doses, the FDA has asked drugmakers to do studies that look at the immune responses of small groups of study participants and compare them to the immune responses seen in study participants after their first two vaccine doses.

To be considered effective, boosters have to clear two bars. The first looks at the concentration of antibodies generated in the blood of boosted study volunteers. The second looks at how many boosted study participants saw a four-fold increase in their blood antibody levels a month after the booster minus the number of people who saw the same increase after their original two doses.

Moderna presented data that its boosters met the first criteria, but failed to meet the second, perhaps because so many people in the study had good responses after their first two doses of the vaccines.

The FDA’s advisory committee will reconvene Oct. 15 to hear evidence supporting the emergency use authorization of a booster dose of the Johnson & Johnson vaccine.

This article was updated Oct. 15 and first appeared on WebMD.com.

A panel of experts that advises the Food and Drug Administration on vaccine decisions voted unanimously Oct. 14 to approve booster doses of Moderna’s COVID-19 vaccine.

The 19 members of the FDA’s Vaccines and Related Biological Products Advisory Committee voted to authorize a 50-milligram dose -- half the dose used in the primary series of shots -- to boost immunity against COVID-19 at least 6 months after the second dose. Those who might need a booster are the same groups who’ve gotten a green light for third Pfizer doses. They include people:

• Over age 65
• Ages 18 to 64 who are at higher risk for severe COVID
• Who are at higher risk of catching COVID because they live in group settings like nursing homes or prisons, or because they are frequently exposed at work, as health care workers are

The agency is not bound by the committee’s vote but usually follows its recommendations.

Some members of the committee said they weren’t satisfied with the data Moderna submitted to support its application but, for practical reasons, said it wouldn’t be fair to take booster doses off the table for Moderna recipients when Pfizer’s boosters were already available.

“The data are not perfect, but these are extraordinary times and we have to work with data that are not perfect,” said Eric Rubin, MD, editor-in-chief of TheNew England Journal of Medicine and a temporary voting member on the committee.

Patrick Moore, MD, a professor at the University of Pittsburgh Cancer Institute who is also a temporary voting member, said he voted to approve the Moderna boosters based “more on a gut feeling than on truly serious data.”

“I’ve got some real issues with this vote,” he said.

“We need to see good solid data, and it needs to be explained well,” Dr. Moore said, challenging companies making future applications to do better.

Next, the FDA will have to formally sign off on the emergency use authorization, which it is expected to do. Then, the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices will meet to make formal recommendations on use of the Moderna boosters. That group is scheduled to meet Oct. 21 to take up questions of exactly how these boosters should be used.

Peter Marks, MD, head of the FDA’s Center for Biologics Evaluation and Research, cautioned that the CDC is more constrained in making recommendations under an emergency use authorization than it would be if the boosters had gotten full approval. So it will likely align its vote with the conditions of the emergency use authorization from the FDA.

After the advisory committee votes, the director of the CDC has to approve its recommendation.

Overall, data show that two doses of the Moderna vaccine remains highly effective at preventing hospitalization and death. But over time, levels of the body’s first line of defense against a virus -- its neutralizing antibodies -- fall somewhat. This drop seems to correspond with an increased risk for breakthrough cases of COVID-19.

Data presented by Moderna Oct. 14 showed the risk of breakthrough infections increased by 36% in study participants who received the vaccine in their clinical trials, compared to people in the same study who received a placebo first, and got the vaccine later, when the trial was unblended. Their protection was more recent, and they had fewer breakthrough infections.

In considering booster doses, the FDA has asked drugmakers to do studies that look at the immune responses of small groups of study participants and compare them to the immune responses seen in study participants after their first two vaccine doses.

To be considered effective, boosters have to clear two bars. The first looks at the concentration of antibodies generated in the blood of boosted study volunteers. The second looks at how many boosted study participants saw a four-fold increase in their blood antibody levels a month after the booster minus the number of people who saw the same increase after their original two doses.

Moderna presented data that its boosters met the first criteria, but failed to meet the second, perhaps because so many people in the study had good responses after their first two doses of the vaccines.

The FDA’s advisory committee will reconvene Oct. 15 to hear evidence supporting the emergency use authorization of a booster dose of the Johnson & Johnson vaccine.

This article was updated Oct. 15 and first appeared on WebMD.com.

Most vaccines are given with hypodermic needle injections. But shots aren’t necessarily the most efficient or effective way to deliver a vaccine. Scientists have been experimenting with microneedle patches to painlessly deliver a vaccine into the outermost layer of the skin with dozens of extremely tiny needles coated in the vaccine solution.

Now, researchers have found a three-dimensional printing method that lets them customize microneedle shapes in the patches for different pathogens, such as flu, measles, hepatitis, or COVID-19. In tests using mice, the patches led to stronger and longer-lasting immune responses than traditional shots under the skin. The research team described their findings in the Proceedings of the National Academy of Sciences.
 

Tiny needles, big advantages

Previous research has shown delivering vaccines into the skin can cause a stronger immune response because the skin has a high concentration of immune cells. But shots can be painful and require skilled medical providers.

Microneedles painlessly deliver the vaccine into the skin without the need for a trained clinician. In fact, a person can even give the vaccine to themselves.

The needles – made of metal, silicon, or plastic – are so tiny that they puncture only the tough outermost layer of skin. The prospect of a painless vaccination without a hypodermic needle may ease anxiety in people who fear needles.

Scientists also can store dried patches after coating them with the vaccine solution, so there’s no preparation needed before giving the vaccine and the patches may not even require cold storage. This latest study suggests that the patches generate a stronger immune response than standard shots, allowing for a smaller dose than traditional vaccine delivery methods and possibly fewer side effects.
 

Breaking the mold

Past methods of making microneedle patches often used molds, but that approach limited the ability to customize patches for different diseases. Repeatedly using same mold also can blunt the tiny needles.

For the three-dimensional–printed patches, Cassie Caudill at the University of North Carolina at Chapel Hill and colleagues used a printing technique that allows greater control over and consistency in the shape of the microneedles. The investigators printed two shapes: a slender pyramid microneedle that is similar to previous versions, and one with serrated grooves that resembles a pine tree.

The increased surface area from the grooves let researchers add 36% more of the ingredient that causes an immune response, compared with using only the pyramid shape, yet still less than a conventional shot. At only 1 cm by 1 cm, each patch contains 100 microneedles that are just over 1 mm long. The researchers found that in mice the patch drew a stronger immune response than a conventional shot, despite carrying a much smaller dose of vaccine ingredient.

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

Most vaccines are given with hypodermic needle injections. But shots aren’t necessarily the most efficient or effective way to deliver a vaccine. Scientists have been experimenting with microneedle patches to painlessly deliver a vaccine into the outermost layer of the skin with dozens of extremely tiny needles coated in the vaccine solution.

Now, researchers have found a three-dimensional printing method that lets them customize microneedle shapes in the patches for different pathogens, such as flu, measles, hepatitis, or COVID-19. In tests using mice, the patches led to stronger and longer-lasting immune responses than traditional shots under the skin. The research team described their findings in the Proceedings of the National Academy of Sciences.
 

Tiny needles, big advantages

Previous research has shown delivering vaccines into the skin can cause a stronger immune response because the skin has a high concentration of immune cells. But shots can be painful and require skilled medical providers.

Microneedles painlessly deliver the vaccine into the skin without the need for a trained clinician. In fact, a person can even give the vaccine to themselves.

The needles – made of metal, silicon, or plastic – are so tiny that they puncture only the tough outermost layer of skin. The prospect of a painless vaccination without a hypodermic needle may ease anxiety in people who fear needles.

Scientists also can store dried patches after coating them with the vaccine solution, so there’s no preparation needed before giving the vaccine and the patches may not even require cold storage. This latest study suggests that the patches generate a stronger immune response than standard shots, allowing for a smaller dose than traditional vaccine delivery methods and possibly fewer side effects.
 

Breaking the mold

Past methods of making microneedle patches often used molds, but that approach limited the ability to customize patches for different diseases. Repeatedly using same mold also can blunt the tiny needles.

For the three-dimensional–printed patches, Cassie Caudill at the University of North Carolina at Chapel Hill and colleagues used a printing technique that allows greater control over and consistency in the shape of the microneedles. The investigators printed two shapes: a slender pyramid microneedle that is similar to previous versions, and one with serrated grooves that resembles a pine tree.

The increased surface area from the grooves let researchers add 36% more of the ingredient that causes an immune response, compared with using only the pyramid shape, yet still less than a conventional shot. At only 1 cm by 1 cm, each patch contains 100 microneedles that are just over 1 mm long. The researchers found that in mice the patch drew a stronger immune response than a conventional shot, despite carrying a much smaller dose of vaccine ingredient.

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

Most vaccines are given with hypodermic needle injections. But shots aren’t necessarily the most efficient or effective way to deliver a vaccine. Scientists have been experimenting with microneedle patches to painlessly deliver a vaccine into the outermost layer of the skin with dozens of extremely tiny needles coated in the vaccine solution.

Now, researchers have found a three-dimensional printing method that lets them customize microneedle shapes in the patches for different pathogens, such as flu, measles, hepatitis, or COVID-19. In tests using mice, the patches led to stronger and longer-lasting immune responses than traditional shots under the skin. The research team described their findings in the Proceedings of the National Academy of Sciences.
 

Tiny needles, big advantages

Previous research has shown delivering vaccines into the skin can cause a stronger immune response because the skin has a high concentration of immune cells. But shots can be painful and require skilled medical providers.

Microneedles painlessly deliver the vaccine into the skin without the need for a trained clinician. In fact, a person can even give the vaccine to themselves.

The needles – made of metal, silicon, or plastic – are so tiny that they puncture only the tough outermost layer of skin. The prospect of a painless vaccination without a hypodermic needle may ease anxiety in people who fear needles.

Scientists also can store dried patches after coating them with the vaccine solution, so there’s no preparation needed before giving the vaccine and the patches may not even require cold storage. This latest study suggests that the patches generate a stronger immune response than standard shots, allowing for a smaller dose than traditional vaccine delivery methods and possibly fewer side effects.
 

Breaking the mold

Past methods of making microneedle patches often used molds, but that approach limited the ability to customize patches for different diseases. Repeatedly using same mold also can blunt the tiny needles.

For the three-dimensional–printed patches, Cassie Caudill at the University of North Carolina at Chapel Hill and colleagues used a printing technique that allows greater control over and consistency in the shape of the microneedles. The investigators printed two shapes: a slender pyramid microneedle that is similar to previous versions, and one with serrated grooves that resembles a pine tree.

The increased surface area from the grooves let researchers add 36% more of the ingredient that causes an immune response, compared with using only the pyramid shape, yet still less than a conventional shot. At only 1 cm by 1 cm, each patch contains 100 microneedles that are just over 1 mm long. The researchers found that in mice the patch drew a stronger immune response than a conventional shot, despite carrying a much smaller dose of vaccine ingredient.

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

Parsonage-Turner syndrome has been highlighted as a potential adverse effect of mRNA COVID vaccines in a recent pharmacovigilance monitoring report from the French National Agency for the Safety of Medicines and Health Products (ANSM).

The rare condition — more common in men than in women — is characterized by the sudden onset of severe pain in the shoulder, followed by arm paralysis. Its etiopathogenesis is not well understood, but vaccines, in particular the flu vaccine, have been implicated in some cases, the report states.

Six serious cases of the syndrome related to the Comirnaty (Pfizer) vaccine were reported by healthcare professionals and vaccinated individuals or their family and friends since the start of the monitoring program. Four of these cases occurred from September 3 to 16.

All six cases involved patients 19 to 69 years of age — two women and four men — who developed symptoms in the 50 days after vaccination. Half were reported after the first dose and half after the second dose. Four of the patients are currently recovering; the outcomes of the other two are unknown.

In the case of the Spikevax vaccine (Moderna), two cases of Parsonage-Turner syndrome were reported after vaccination (plus one that occurred after 50 days, which is currently being managed). The onset of symptoms in these two men — one in his early 30s and one in his early 60s — occurred less than 18 days after vaccination. One occurred after the first dose and one after the second dose. This timing indicates a possible link between the syndrome and the vaccine. Both men are currently in recovery.

This signal of mRNA vaccines is now “officially recognized,” according to the Pfizer and Moderna reports.

It is also considered a “potential signal” in the Vaxzevria (AstraZeneca) pharmacovigilance report, released October 8, which describes eight cases of Parsonage-Turner syndrome after vaccination.
 

Safety profile of mRNA COVID vaccines in youth

Between June 15, when children 12 years and older became eligible for vaccination, and August 26, there were 591 reports of potential adverse events — out of 6 million Pfizer doses administered — in 12- to 18-year-old children.

Of the 591 cases, 35.2% were deemed serious. The majority of these were cases of reactogenicity, malaise, or postvaccine discomfort (25%), followed by instances of myocarditis and pericarditis (15.9% and 7.2%, respectively). In eight of 10 cases, one of the first symptom reported was chest pain.

Myocarditis occurred in 39.4% of people after the first injection (mean time to onset, 13 days) and 54.5% after the second (mean time to onset, 4 days). Recorded progress was favorable in nearly nine of 10 cases.

Pericarditis occurred in 53.3% of people after the first injection (mean time to onset, 13 days), and 40.0% after the second (mean time to onset, 4 days).

Three cases of multisystem inflammatory syndrome in children (MISC) were reported after monitoring ended.

For this age group, “all reported events will continue to be monitored, especially serious events and multisystem inflammatory syndrome in children,” report authors conclude.

Data for adverse events after the Moderna vaccine remain limited, but the report stipulates that “the adverse events reported in 12- to 18-year-olds who received an injection do not display any particular pattern, compared with those reported in older subjects, with the exception of a roughly 100-fold lower incidence of reported adverse effects in the 12- to 17-year age group.”
 

No safety warnings for pregnant women

The pharmacovigilance report — which covered the period from December 27, 2020 to September 9, 2021 — “raises no safety warnings for pregnant or nursing women with any of the COVID-19 vaccines.” In addition, two recent studies — one published in JAMA and one in the New England Journal of Medicine — have shown no link between spontaneous miscarriage and mRNA vaccines.

“Moreover, it should be stressed that current data from the international literature consistently show that maternal SARS COV-2 infection increases the risk for fetal, maternal, and neonatal complications, and that this risk may increase with the arrival of the Alpha and Delta variants,” they write. “It is therefore important to reiterate the current recommendations to vaccinate all pregnant women, regardless of the stage of pregnancy.”

Some adverse effects, such as thromboembolic effects, in utero death, HELLP (hemolysis, elevated liver enzymes, and low platelets) syndrome, and uterine contractions, will continue to be monitored.
 

Questions regarding menstrual disorders

As for gynecological disorders reported after vaccination, questions still remain. “In most of the reported cases, it is difficult to accurately determine whether the vaccine played a role in the occurrence of menstrual/genital bleeding,” the authors of the pharmacovigilance monitoring report state.

“Nonetheless, these cases warrant attention,” they add, and further discussions with the French National Association of Obstetricians and Gynecologists and the French Society of Endocrinology are needed in regard to these potential safety signals.

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

Parsonage-Turner syndrome has been highlighted as a potential adverse effect of mRNA COVID vaccines in a recent pharmacovigilance monitoring report from the French National Agency for the Safety of Medicines and Health Products (ANSM).

The rare condition — more common in men than in women — is characterized by the sudden onset of severe pain in the shoulder, followed by arm paralysis. Its etiopathogenesis is not well understood, but vaccines, in particular the flu vaccine, have been implicated in some cases, the report states.

Six serious cases of the syndrome related to the Comirnaty (Pfizer) vaccine were reported by healthcare professionals and vaccinated individuals or their family and friends since the start of the monitoring program. Four of these cases occurred from September 3 to 16.

All six cases involved patients 19 to 69 years of age — two women and four men — who developed symptoms in the 50 days after vaccination. Half were reported after the first dose and half after the second dose. Four of the patients are currently recovering; the outcomes of the other two are unknown.

In the case of the Spikevax vaccine (Moderna), two cases of Parsonage-Turner syndrome were reported after vaccination (plus one that occurred after 50 days, which is currently being managed). The onset of symptoms in these two men — one in his early 30s and one in his early 60s — occurred less than 18 days after vaccination. One occurred after the first dose and one after the second dose. This timing indicates a possible link between the syndrome and the vaccine. Both men are currently in recovery.

This signal of mRNA vaccines is now “officially recognized,” according to the Pfizer and Moderna reports.

It is also considered a “potential signal” in the Vaxzevria (AstraZeneca) pharmacovigilance report, released October 8, which describes eight cases of Parsonage-Turner syndrome after vaccination.
 

Safety profile of mRNA COVID vaccines in youth

Between June 15, when children 12 years and older became eligible for vaccination, and August 26, there were 591 reports of potential adverse events — out of 6 million Pfizer doses administered — in 12- to 18-year-old children.

Of the 591 cases, 35.2% were deemed serious. The majority of these were cases of reactogenicity, malaise, or postvaccine discomfort (25%), followed by instances of myocarditis and pericarditis (15.9% and 7.2%, respectively). In eight of 10 cases, one of the first symptom reported was chest pain.

Myocarditis occurred in 39.4% of people after the first injection (mean time to onset, 13 days) and 54.5% after the second (mean time to onset, 4 days). Recorded progress was favorable in nearly nine of 10 cases.

Pericarditis occurred in 53.3% of people after the first injection (mean time to onset, 13 days), and 40.0% after the second (mean time to onset, 4 days).

Three cases of multisystem inflammatory syndrome in children (MISC) were reported after monitoring ended.

For this age group, “all reported events will continue to be monitored, especially serious events and multisystem inflammatory syndrome in children,” report authors conclude.

Data for adverse events after the Moderna vaccine remain limited, but the report stipulates that “the adverse events reported in 12- to 18-year-olds who received an injection do not display any particular pattern, compared with those reported in older subjects, with the exception of a roughly 100-fold lower incidence of reported adverse effects in the 12- to 17-year age group.”
 

No safety warnings for pregnant women

The pharmacovigilance report — which covered the period from December 27, 2020 to September 9, 2021 — “raises no safety warnings for pregnant or nursing women with any of the COVID-19 vaccines.” In addition, two recent studies — one published in JAMA and one in the New England Journal of Medicine — have shown no link between spontaneous miscarriage and mRNA vaccines.

“Moreover, it should be stressed that current data from the international literature consistently show that maternal SARS COV-2 infection increases the risk for fetal, maternal, and neonatal complications, and that this risk may increase with the arrival of the Alpha and Delta variants,” they write. “It is therefore important to reiterate the current recommendations to vaccinate all pregnant women, regardless of the stage of pregnancy.”

Some adverse effects, such as thromboembolic effects, in utero death, HELLP (hemolysis, elevated liver enzymes, and low platelets) syndrome, and uterine contractions, will continue to be monitored.
 

Questions regarding menstrual disorders

As for gynecological disorders reported after vaccination, questions still remain. “In most of the reported cases, it is difficult to accurately determine whether the vaccine played a role in the occurrence of menstrual/genital bleeding,” the authors of the pharmacovigilance monitoring report state.

“Nonetheless, these cases warrant attention,” they add, and further discussions with the French National Association of Obstetricians and Gynecologists and the French Society of Endocrinology are needed in regard to these potential safety signals.

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

Parsonage-Turner syndrome has been highlighted as a potential adverse effect of mRNA COVID vaccines in a recent pharmacovigilance monitoring report from the French National Agency for the Safety of Medicines and Health Products (ANSM).

The rare condition — more common in men than in women — is characterized by the sudden onset of severe pain in the shoulder, followed by arm paralysis. Its etiopathogenesis is not well understood, but vaccines, in particular the flu vaccine, have been implicated in some cases, the report states.

Six serious cases of the syndrome related to the Comirnaty (Pfizer) vaccine were reported by healthcare professionals and vaccinated individuals or their family and friends since the start of the monitoring program. Four of these cases occurred from September 3 to 16.

All six cases involved patients 19 to 69 years of age — two women and four men — who developed symptoms in the 50 days after vaccination. Half were reported after the first dose and half after the second dose. Four of the patients are currently recovering; the outcomes of the other two are unknown.

In the case of the Spikevax vaccine (Moderna), two cases of Parsonage-Turner syndrome were reported after vaccination (plus one that occurred after 50 days, which is currently being managed). The onset of symptoms in these two men — one in his early 30s and one in his early 60s — occurred less than 18 days after vaccination. One occurred after the first dose and one after the second dose. This timing indicates a possible link between the syndrome and the vaccine. Both men are currently in recovery.

This signal of mRNA vaccines is now “officially recognized,” according to the Pfizer and Moderna reports.

It is also considered a “potential signal” in the Vaxzevria (AstraZeneca) pharmacovigilance report, released October 8, which describes eight cases of Parsonage-Turner syndrome after vaccination.
 

Safety profile of mRNA COVID vaccines in youth

Between June 15, when children 12 years and older became eligible for vaccination, and August 26, there were 591 reports of potential adverse events — out of 6 million Pfizer doses administered — in 12- to 18-year-old children.

Of the 591 cases, 35.2% were deemed serious. The majority of these were cases of reactogenicity, malaise, or postvaccine discomfort (25%), followed by instances of myocarditis and pericarditis (15.9% and 7.2%, respectively). In eight of 10 cases, one of the first symptom reported was chest pain.

Myocarditis occurred in 39.4% of people after the first injection (mean time to onset, 13 days) and 54.5% after the second (mean time to onset, 4 days). Recorded progress was favorable in nearly nine of 10 cases.

Pericarditis occurred in 53.3% of people after the first injection (mean time to onset, 13 days), and 40.0% after the second (mean time to onset, 4 days).

Three cases of multisystem inflammatory syndrome in children (MISC) were reported after monitoring ended.

For this age group, “all reported events will continue to be monitored, especially serious events and multisystem inflammatory syndrome in children,” report authors conclude.

Data for adverse events after the Moderna vaccine remain limited, but the report stipulates that “the adverse events reported in 12- to 18-year-olds who received an injection do not display any particular pattern, compared with those reported in older subjects, with the exception of a roughly 100-fold lower incidence of reported adverse effects in the 12- to 17-year age group.”
 

No safety warnings for pregnant women

The pharmacovigilance report — which covered the period from December 27, 2020 to September 9, 2021 — “raises no safety warnings for pregnant or nursing women with any of the COVID-19 vaccines.” In addition, two recent studies — one published in JAMA and one in the New England Journal of Medicine — have shown no link between spontaneous miscarriage and mRNA vaccines.

“Moreover, it should be stressed that current data from the international literature consistently show that maternal SARS COV-2 infection increases the risk for fetal, maternal, and neonatal complications, and that this risk may increase with the arrival of the Alpha and Delta variants,” they write. “It is therefore important to reiterate the current recommendations to vaccinate all pregnant women, regardless of the stage of pregnancy.”

Some adverse effects, such as thromboembolic effects, in utero death, HELLP (hemolysis, elevated liver enzymes, and low platelets) syndrome, and uterine contractions, will continue to be monitored.
 

Questions regarding menstrual disorders

As for gynecological disorders reported after vaccination, questions still remain. “In most of the reported cases, it is difficult to accurately determine whether the vaccine played a role in the occurrence of menstrual/genital bleeding,” the authors of the pharmacovigilance monitoring report state.

“Nonetheless, these cases warrant attention,” they add, and further discussions with the French National Association of Obstetricians and Gynecologists and the French Society of Endocrinology are needed in regard to these potential safety signals.

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

The chances that unvaccinated family members will be infected or hospitalized with COVID-19 drop sharply if even one family member is vaccinated. The chances are reduced even further with each additional vaccinated or otherwise immune family member, according to new data.

Lead author Peter Nordström, MD, PhD, with the unit of geriatric medicine, Umeå (Sweden) University, said in an interview the message is important for public health: “When you vaccinate, you do not just protect yourself but also your relatives.”

The findings were published online on Oct. 11, 2021, in JAMA Internal Medicine.

Researchers analyzed data from 1,789,728 individuals from 814,806 families from nationwide registries in Sweden. All individuals had acquired immunity either from previously being infected with SARS-CoV-2 or by being fully vaccinated (that is, having received two doses of the Moderna, Pfizer, or Oxford/AstraZeneca vaccines). Persons were considered for inclusion until May 26, 2021.

Each person with immunity was matched in a 1:1 ratio to a person without immunity from a cohort of individuals with families that had from two to five members. Families with more than five members were excluded because of small sample sizes.

Primarily nonimmune families in which there was one immune family member had a 45%-61% lower risk of contracting COVID-19 (hazard ratio, 0.39-0.55; 95% confidence interval, 0.37-0.61; P < .001).

The risk reduction increased to 75%-86% when two family members were immune (HR, 0.14-0.25; 95% CI, 0.11-0.27; P < .001).

It increased to 91%-94% when three family members were immune (HR, 0.06-0.09; 95% CI, 0.04-0.10; P < .001) and to 97% with four immune family members (HR, 0.03; 95% CI, 0.02-0.05; P < .001).

“The results were similar for the outcome of COVID-19 infection that was severe enough to warrant a hospital stay,” the authors wrote. They listed as an example that, in three-member families in which two members were immune, the remaining nonimmune family member had an 80% lower risk for hospitalization (HR, 0.20; 95% CI, 0.10-0.43; P < .001).
 

Global implications

Dr. Nordström said the team used the family setting because it was more easily identifiable as a cohort with the national registries and because COVID-19 is spread among people in close contact with each other. The findings have implications for other groups that spend large amounts of time together and for herd immunity, he added.

The findings may be particularly welcome in regions of the world where vaccination rates are very low. The authors noted that most of the global population has not yet been vaccinated and that “it is anticipated that most of the population in low-income countries will be unable to receive a vaccine in 2021, with current vaccination rates suggesting that completely inoculating 70%-85% of the global population may take up to 5 years.”

Jill Foster, MD, a pediatric infectious disease specialist at the University of Minnesota, Minneapolis, said in an interview she agrees that the news could encourage countries that have very low vaccination rates.

This study may help motivate areas with few resources to start small, she said: “Even one is better than zero.”

She added that this news could also help ease the minds of families that have immunocompromised members or in which there are children who are too young to be vaccinated.

With these data, she said, people can see there’s something they can do to help protect a family member.

Dr. Foster said that although it’s intuitive to think that the more vaccinated people there are in a family, the safer people are, “it’s really nice to see the data coming out of such a large dataset.”

The authors acknowledged that a limitation of the study is that, at the time the study was conducted, the Delta variant was uncommon in Sweden. It is therefore unclear whether the findings regarding immunity are still relevant in Sweden and elsewhere now that the Delta strain is dominant.

The authors reported no relevant financial relationships. Dr. Foster has received grant support from Moderna.

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

The chances that unvaccinated family members will be infected or hospitalized with COVID-19 drop sharply if even one family member is vaccinated. The chances are reduced even further with each additional vaccinated or otherwise immune family member, according to new data.

Lead author Peter Nordström, MD, PhD, with the unit of geriatric medicine, Umeå (Sweden) University, said in an interview the message is important for public health: “When you vaccinate, you do not just protect yourself but also your relatives.”

The findings were published online on Oct. 11, 2021, in JAMA Internal Medicine.

Researchers analyzed data from 1,789,728 individuals from 814,806 families from nationwide registries in Sweden. All individuals had acquired immunity either from previously being infected with SARS-CoV-2 or by being fully vaccinated (that is, having received two doses of the Moderna, Pfizer, or Oxford/AstraZeneca vaccines). Persons were considered for inclusion until May 26, 2021.

Each person with immunity was matched in a 1:1 ratio to a person without immunity from a cohort of individuals with families that had from two to five members. Families with more than five members were excluded because of small sample sizes.

Primarily nonimmune families in which there was one immune family member had a 45%-61% lower risk of contracting COVID-19 (hazard ratio, 0.39-0.55; 95% confidence interval, 0.37-0.61; P < .001).

The risk reduction increased to 75%-86% when two family members were immune (HR, 0.14-0.25; 95% CI, 0.11-0.27; P < .001).

It increased to 91%-94% when three family members were immune (HR, 0.06-0.09; 95% CI, 0.04-0.10; P < .001) and to 97% with four immune family members (HR, 0.03; 95% CI, 0.02-0.05; P < .001).

“The results were similar for the outcome of COVID-19 infection that was severe enough to warrant a hospital stay,” the authors wrote. They listed as an example that, in three-member families in which two members were immune, the remaining nonimmune family member had an 80% lower risk for hospitalization (HR, 0.20; 95% CI, 0.10-0.43; P < .001).
 

Global implications

Dr. Nordström said the team used the family setting because it was more easily identifiable as a cohort with the national registries and because COVID-19 is spread among people in close contact with each other. The findings have implications for other groups that spend large amounts of time together and for herd immunity, he added.

The findings may be particularly welcome in regions of the world where vaccination rates are very low. The authors noted that most of the global population has not yet been vaccinated and that “it is anticipated that most of the population in low-income countries will be unable to receive a vaccine in 2021, with current vaccination rates suggesting that completely inoculating 70%-85% of the global population may take up to 5 years.”

Jill Foster, MD, a pediatric infectious disease specialist at the University of Minnesota, Minneapolis, said in an interview she agrees that the news could encourage countries that have very low vaccination rates.

This study may help motivate areas with few resources to start small, she said: “Even one is better than zero.”

She added that this news could also help ease the minds of families that have immunocompromised members or in which there are children who are too young to be vaccinated.

With these data, she said, people can see there’s something they can do to help protect a family member.

Dr. Foster said that although it’s intuitive to think that the more vaccinated people there are in a family, the safer people are, “it’s really nice to see the data coming out of such a large dataset.”

The authors acknowledged that a limitation of the study is that, at the time the study was conducted, the Delta variant was uncommon in Sweden. It is therefore unclear whether the findings regarding immunity are still relevant in Sweden and elsewhere now that the Delta strain is dominant.

The authors reported no relevant financial relationships. Dr. Foster has received grant support from Moderna.

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

The chances that unvaccinated family members will be infected or hospitalized with COVID-19 drop sharply if even one family member is vaccinated. The chances are reduced even further with each additional vaccinated or otherwise immune family member, according to new data.

Lead author Peter Nordström, MD, PhD, with the unit of geriatric medicine, Umeå (Sweden) University, said in an interview the message is important for public health: “When you vaccinate, you do not just protect yourself but also your relatives.”

The findings were published online on Oct. 11, 2021, in JAMA Internal Medicine.

Researchers analyzed data from 1,789,728 individuals from 814,806 families from nationwide registries in Sweden. All individuals had acquired immunity either from previously being infected with SARS-CoV-2 or by being fully vaccinated (that is, having received two doses of the Moderna, Pfizer, or Oxford/AstraZeneca vaccines). Persons were considered for inclusion until May 26, 2021.

Each person with immunity was matched in a 1:1 ratio to a person without immunity from a cohort of individuals with families that had from two to five members. Families with more than five members were excluded because of small sample sizes.

Primarily nonimmune families in which there was one immune family member had a 45%-61% lower risk of contracting COVID-19 (hazard ratio, 0.39-0.55; 95% confidence interval, 0.37-0.61; P < .001).

The risk reduction increased to 75%-86% when two family members were immune (HR, 0.14-0.25; 95% CI, 0.11-0.27; P < .001).

It increased to 91%-94% when three family members were immune (HR, 0.06-0.09; 95% CI, 0.04-0.10; P < .001) and to 97% with four immune family members (HR, 0.03; 95% CI, 0.02-0.05; P < .001).

“The results were similar for the outcome of COVID-19 infection that was severe enough to warrant a hospital stay,” the authors wrote. They listed as an example that, in three-member families in which two members were immune, the remaining nonimmune family member had an 80% lower risk for hospitalization (HR, 0.20; 95% CI, 0.10-0.43; P < .001).
 

Global implications

Dr. Nordström said the team used the family setting because it was more easily identifiable as a cohort with the national registries and because COVID-19 is spread among people in close contact with each other. The findings have implications for other groups that spend large amounts of time together and for herd immunity, he added.

The findings may be particularly welcome in regions of the world where vaccination rates are very low. The authors noted that most of the global population has not yet been vaccinated and that “it is anticipated that most of the population in low-income countries will be unable to receive a vaccine in 2021, with current vaccination rates suggesting that completely inoculating 70%-85% of the global population may take up to 5 years.”

Jill Foster, MD, a pediatric infectious disease specialist at the University of Minnesota, Minneapolis, said in an interview she agrees that the news could encourage countries that have very low vaccination rates.

This study may help motivate areas with few resources to start small, she said: “Even one is better than zero.”

She added that this news could also help ease the minds of families that have immunocompromised members or in which there are children who are too young to be vaccinated.

With these data, she said, people can see there’s something they can do to help protect a family member.

Dr. Foster said that although it’s intuitive to think that the more vaccinated people there are in a family, the safer people are, “it’s really nice to see the data coming out of such a large dataset.”

The authors acknowledged that a limitation of the study is that, at the time the study was conducted, the Delta variant was uncommon in Sweden. It is therefore unclear whether the findings regarding immunity are still relevant in Sweden and elsewhere now that the Delta strain is dominant.

The authors reported no relevant financial relationships. Dr. Foster has received grant support from Moderna.

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

The World Health Organization and its partners recently released an ambitious plan, Defeating meningitis by 2030: A global road map. The goal is to reduce deaths and disabilities from bacterial meningitis, which kills about 250,000 people annually of the 1.2 million estimated to be infected.

This type of infection around the brain and spinal cord also causes long-term disabilities – deafness, learning problems, seizures, loss of limbs – in about one-quarter of survivors.

The leading causes of bacterial meningitis are Neisseria meningitidis (meningococcus), Streptococcus pneumoniae (pneumococcus), Haemophilus influenzae, and group B streptococcus. As with malaria, about half of the cases are in children under age 5 years. The most severely affected area for both infections is sub-Saharan Africa.

The main goal of the roadmap is to reduce vaccine-preventable cases of bacterial meningitis by 50% and deaths by 70% by 2030. WHO’s partners included the Centers for Disease Control and Prevention, the London School of Hygiene and Tropical Medicine, Médecins Sans Frontières (Doctors Without Borders), the Meningitis Research Foundation, PATH, UNICEF, and numerous global consultants.

For primary prevention and epidemic control, a major goal is to achieve higher vaccine coverage. Another goal is developing and deploying rapid diagnostic tests to guide treatment and prevention activities and measure the impact of vaccination. The lack of laboratory capacity to confirm the bacteria is a significant challenge. Also, patients often receive antibiotics before appropriate tests are conducted, and lumbar punctures are frequently not done.

The commitment to this project emerged in 2017. It was followed by a baseline analysis in 2018 and a draft roadmap the following year. Consultations with experts and with more than 600 patient groups in more than 90 countries followed.

Prevention through greater vaccine uptake was the top priority. Vaccination is considered the first line of defense against antibiotic resistance among the targeted bacteria.

Another goal is to quantify the decrease in antibiotic use for invasive infections or prophylaxis and the subsequent reduction in antimicrobial resistance in relation to increased vaccination.

Surveillance is weak in many regions, limiting the ability to detect epidemics and to respond appropriately. Similarly, there are limited data on the burden of sequelae, such as deafness, on meningitis survivors.

There is an inadequate supply of affordable vaccines to respond to epidemics.  Currently, routine vaccination against Neisseria meningitidis is occurring in 18 of 26 countries in the meningitis belt. Epidemics of meningococcus occur every few years in the driest time of the year and abate with the rains. Epidemics of pneumococcal meningitis are much rarer but follow a similar pattern; they have also been associated with crowding and alcohol use.

Care for those affected by meningitis is another focus, as is affirming the right to prevention and care. There’s a need for earlier recognition of the complications of meningitis and an increase in efforts to treat those complications.

WHO’s final goal in its roadmap is to boost awareness of meningitis and make it a priority for policymakers. Similarly, there is a need to educate communities about the disease, including how to access vaccines. If someone becomes ill, they need to be aware of the symptoms, the need for early treatment, and what aftercare is available.

Marie-Pierre Préziosi, MD, the core secretariat of WHO’s Technical Taskforce, told this news organization that while the roadmap looks aspirational, “it is feasible … you have strategic goals – each has milestones with time limits and who will do it.”

Regarding vaccinations, Dr. Préziosi said that “the strategy was a victim of its success. The mass campaign knocked down transmission completely.” Some countries are now waiting for multivalent vaccines. She said that vaccine hesitancy is not a significant problem in Africa “because the disease is so feared.”

Major obstacles to implementing the roadmap include the complacency of public health leaders and the COVID-19 lockdowns, which decreased vaccination coverage rates. “The second thing is also sufficient funding to do the research and innovation so that we get the affordable tools that we need globally,” Dr. Préziosi said.

Marilyn Felkner, DrPH, School of Human Ecology, University of Texas at Austin, said in an interview, “It’s very cliché, but we have often said that communicable diseases do not respect political boundaries. So to expect a country to be able to control that by themselves is a false hope.”

Regarding the roadmap, Dr. Felkner said, “I think that organizing ideas and having them in writing is always a good first step. And it can help people move forward if they’re feeling overwhelmed ... Having a written plan can certainly provide that fundamental basis. So, the important thing is not to say, ‘Oh, we have this great plan done; hope somebody picks up the plan.’ There’s got to be some momentum behind it, and hopefully some funding.”

Dr. Préziosi and Dr. Felkner have disclosed no relevant financial relationships.

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

The World Health Organization and its partners recently released an ambitious plan, Defeating meningitis by 2030: A global road map. The goal is to reduce deaths and disabilities from bacterial meningitis, which kills about 250,000 people annually of the 1.2 million estimated to be infected.

This type of infection around the brain and spinal cord also causes long-term disabilities – deafness, learning problems, seizures, loss of limbs – in about one-quarter of survivors.

The leading causes of bacterial meningitis are Neisseria meningitidis (meningococcus), Streptococcus pneumoniae (pneumococcus), Haemophilus influenzae, and group B streptococcus. As with malaria, about half of the cases are in children under age 5 years. The most severely affected area for both infections is sub-Saharan Africa.

The main goal of the roadmap is to reduce vaccine-preventable cases of bacterial meningitis by 50% and deaths by 70% by 2030. WHO’s partners included the Centers for Disease Control and Prevention, the London School of Hygiene and Tropical Medicine, Médecins Sans Frontières (Doctors Without Borders), the Meningitis Research Foundation, PATH, UNICEF, and numerous global consultants.

For primary prevention and epidemic control, a major goal is to achieve higher vaccine coverage. Another goal is developing and deploying rapid diagnostic tests to guide treatment and prevention activities and measure the impact of vaccination. The lack of laboratory capacity to confirm the bacteria is a significant challenge. Also, patients often receive antibiotics before appropriate tests are conducted, and lumbar punctures are frequently not done.

The commitment to this project emerged in 2017. It was followed by a baseline analysis in 2018 and a draft roadmap the following year. Consultations with experts and with more than 600 patient groups in more than 90 countries followed.

Prevention through greater vaccine uptake was the top priority. Vaccination is considered the first line of defense against antibiotic resistance among the targeted bacteria.

Another goal is to quantify the decrease in antibiotic use for invasive infections or prophylaxis and the subsequent reduction in antimicrobial resistance in relation to increased vaccination.

Surveillance is weak in many regions, limiting the ability to detect epidemics and to respond appropriately. Similarly, there are limited data on the burden of sequelae, such as deafness, on meningitis survivors.

There is an inadequate supply of affordable vaccines to respond to epidemics.  Currently, routine vaccination against Neisseria meningitidis is occurring in 18 of 26 countries in the meningitis belt. Epidemics of meningococcus occur every few years in the driest time of the year and abate with the rains. Epidemics of pneumococcal meningitis are much rarer but follow a similar pattern; they have also been associated with crowding and alcohol use.

Care for those affected by meningitis is another focus, as is affirming the right to prevention and care. There’s a need for earlier recognition of the complications of meningitis and an increase in efforts to treat those complications.

WHO’s final goal in its roadmap is to boost awareness of meningitis and make it a priority for policymakers. Similarly, there is a need to educate communities about the disease, including how to access vaccines. If someone becomes ill, they need to be aware of the symptoms, the need for early treatment, and what aftercare is available.

Marie-Pierre Préziosi, MD, the core secretariat of WHO’s Technical Taskforce, told this news organization that while the roadmap looks aspirational, “it is feasible … you have strategic goals – each has milestones with time limits and who will do it.”

Regarding vaccinations, Dr. Préziosi said that “the strategy was a victim of its success. The mass campaign knocked down transmission completely.” Some countries are now waiting for multivalent vaccines. She said that vaccine hesitancy is not a significant problem in Africa “because the disease is so feared.”

Major obstacles to implementing the roadmap include the complacency of public health leaders and the COVID-19 lockdowns, which decreased vaccination coverage rates. “The second thing is also sufficient funding to do the research and innovation so that we get the affordable tools that we need globally,” Dr. Préziosi said.

Marilyn Felkner, DrPH, School of Human Ecology, University of Texas at Austin, said in an interview, “It’s very cliché, but we have often said that communicable diseases do not respect political boundaries. So to expect a country to be able to control that by themselves is a false hope.”

Regarding the roadmap, Dr. Felkner said, “I think that organizing ideas and having them in writing is always a good first step. And it can help people move forward if they’re feeling overwhelmed ... Having a written plan can certainly provide that fundamental basis. So, the important thing is not to say, ‘Oh, we have this great plan done; hope somebody picks up the plan.’ There’s got to be some momentum behind it, and hopefully some funding.”

Dr. Préziosi and Dr. Felkner have disclosed no relevant financial relationships.

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

The World Health Organization and its partners recently released an ambitious plan, Defeating meningitis by 2030: A global road map. The goal is to reduce deaths and disabilities from bacterial meningitis, which kills about 250,000 people annually of the 1.2 million estimated to be infected.

This type of infection around the brain and spinal cord also causes long-term disabilities – deafness, learning problems, seizures, loss of limbs – in about one-quarter of survivors.

The leading causes of bacterial meningitis are Neisseria meningitidis (meningococcus), Streptococcus pneumoniae (pneumococcus), Haemophilus influenzae, and group B streptococcus. As with malaria, about half of the cases are in children under age 5 years. The most severely affected area for both infections is sub-Saharan Africa.

The main goal of the roadmap is to reduce vaccine-preventable cases of bacterial meningitis by 50% and deaths by 70% by 2030. WHO’s partners included the Centers for Disease Control and Prevention, the London School of Hygiene and Tropical Medicine, Médecins Sans Frontières (Doctors Without Borders), the Meningitis Research Foundation, PATH, UNICEF, and numerous global consultants.

For primary prevention and epidemic control, a major goal is to achieve higher vaccine coverage. Another goal is developing and deploying rapid diagnostic tests to guide treatment and prevention activities and measure the impact of vaccination. The lack of laboratory capacity to confirm the bacteria is a significant challenge. Also, patients often receive antibiotics before appropriate tests are conducted, and lumbar punctures are frequently not done.

The commitment to this project emerged in 2017. It was followed by a baseline analysis in 2018 and a draft roadmap the following year. Consultations with experts and with more than 600 patient groups in more than 90 countries followed.

Prevention through greater vaccine uptake was the top priority. Vaccination is considered the first line of defense against antibiotic resistance among the targeted bacteria.

Another goal is to quantify the decrease in antibiotic use for invasive infections or prophylaxis and the subsequent reduction in antimicrobial resistance in relation to increased vaccination.

Surveillance is weak in many regions, limiting the ability to detect epidemics and to respond appropriately. Similarly, there are limited data on the burden of sequelae, such as deafness, on meningitis survivors.

There is an inadequate supply of affordable vaccines to respond to epidemics.  Currently, routine vaccination against Neisseria meningitidis is occurring in 18 of 26 countries in the meningitis belt. Epidemics of meningococcus occur every few years in the driest time of the year and abate with the rains. Epidemics of pneumococcal meningitis are much rarer but follow a similar pattern; they have also been associated with crowding and alcohol use.

Care for those affected by meningitis is another focus, as is affirming the right to prevention and care. There’s a need for earlier recognition of the complications of meningitis and an increase in efforts to treat those complications.

WHO’s final goal in its roadmap is to boost awareness of meningitis and make it a priority for policymakers. Similarly, there is a need to educate communities about the disease, including how to access vaccines. If someone becomes ill, they need to be aware of the symptoms, the need for early treatment, and what aftercare is available.

Marie-Pierre Préziosi, MD, the core secretariat of WHO’s Technical Taskforce, told this news organization that while the roadmap looks aspirational, “it is feasible … you have strategic goals – each has milestones with time limits and who will do it.”

Regarding vaccinations, Dr. Préziosi said that “the strategy was a victim of its success. The mass campaign knocked down transmission completely.” Some countries are now waiting for multivalent vaccines. She said that vaccine hesitancy is not a significant problem in Africa “because the disease is so feared.”

Major obstacles to implementing the roadmap include the complacency of public health leaders and the COVID-19 lockdowns, which decreased vaccination coverage rates. “The second thing is also sufficient funding to do the research and innovation so that we get the affordable tools that we need globally,” Dr. Préziosi said.

Marilyn Felkner, DrPH, School of Human Ecology, University of Texas at Austin, said in an interview, “It’s very cliché, but we have often said that communicable diseases do not respect political boundaries. So to expect a country to be able to control that by themselves is a false hope.”

Regarding the roadmap, Dr. Felkner said, “I think that organizing ideas and having them in writing is always a good first step. And it can help people move forward if they’re feeling overwhelmed ... Having a written plan can certainly provide that fundamental basis. So, the important thing is not to say, ‘Oh, we have this great plan done; hope somebody picks up the plan.’ There’s got to be some momentum behind it, and hopefully some funding.”

Dr. Préziosi and Dr. Felkner have disclosed no relevant financial relationships.

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