Next-generation sequencing can expedite surveillance/discovery of new bat coronaviruses

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Enrichment next-generation sequencing (NGS) provides a more cost-efficient and sensitive method for detecting and sequencing novel coronaviruses from wild bat populations, according to a study reported in mSphere, an open-access journal from the American Society for Microbiology.

Wikimedia Commons/Mickey Samuni-Blank

With the appearance of the new zoonotic Wuhan coronavirus, the importance of monitoring the likelihood of new virus risks in wildlife reservoirs has been heightened. Bats in particular have been found to be the most common reservoir of coronaviruses, including being a probable source or mixing vessel for two previous modern epidemic coronaviruses: SARS (severe acute respiratory syndrome) and MERS (Middle East respiratory syndrome).

“We should be alert and vigilant with the knowledge that bat CoVs [coronaviruses] are likely to cause another disease outbreak, not only because of their prevalence but also because the high frequency of recombination between viruses may lead to the generation of viruses with changes in virulence,” according to Bei Li, MD, of the Wuhan (China) Institute of Virology, and colleagues.

“We previously provided serological evidence that [HKU8-related] CoV had jumped over from bats to camels and recombined with MERS-CoV, alerting other researchers that the CoV species could be dangerous. ... Genome-level comparison is needed to monitor the risk of alterations in species tropism and pathogenesis,” according to study authors. They performed a study to develop a more effective and cost efficient method for detecting and sequencing novel coronaviruses in the bat population.



The taxonomy of coronaviruses is particularly complex and may be too narrowly defined, given the high level of genetic plasticity found. There are four genera (Alpha-, Beta-, Gamma-, and Deltacoronavirus) consisting of 38 unique species in the CoV subfamily Orthocoronavirinae, and the number is increasing. Viral taxomists rely on the open reading frame 1b (ORF1b) gene for classification, but viruses in the same species may show great diversity in regions outside ORF1b, confounding the species designation. In particular, bat CoVs classed as the same species can differ significantly in terms of receptor usage or virus-host interaction, as observed in bat SARS-related CoVs, according to the researchers.

The researchers obtained RNA from previous bat CoV surveillance projects, which used bat rectal swabs. Libraries for NGS were constructed from total RNA and processed to generate RNA fragments larger than 300 nucleotides. Following first- and second-strand cDNA synthesis, double-stranded cDNA was purified and the library was amplified by polymerase chain reaction (PCR) technology.

Targeted CoV genome enrichment was achieved using 4,303 customized biotinylated 120-mer baits. These baits were designed from 90 representative CoV genomes, and in silico analysis determined that these baits should target the known CoV species tested. These baits were added and hybridized to the libraries. To capture virus-specific library fragments, streptavidin magnetic beads (which bind to biotin) were added to the hybridization reaction mixture. The beads were then washed to remove unbound DNA. The postcapture virus-specific library fragments were then amplified using a subsequent round of PCR.

The enrichment NGS were retrospectively complemented with unbiased NGS and/or additional Sanger sequencing to obtain full-length genomes. The study showed that enrichment NGS not only decreased the amount of data requiring analysis but produced full-length genome coverage in both laboratory and clinical samples.

Using this technology, the researchers “effectively reduced sequencing costs by increasing the sensitivity of detection. We discovered nine full genomes of bat CoVs in this study and revealed great genetic diversity for eight of them.” In addition, they noted that using standard targeted PCR, which is common practice for many surveillance studies, would not have discovered this diversity.

“We should be alert and vigilant with the knowledge that bat CoVs are likely to cause another disease outbreak, not only because of their prevalence but also because the high frequency of recombination between viruses may lead to the generation of viruses with changes in virulence,” according to the researchers.

“We have provided a cost-effective methodology for bat CoV surveillance. The high genetic diversity observed in our newly sequenced samples suggests further work is needed to characterize these bat CoVs prior to or in the early stages of spillover to humans,” the authors concluded.

This study was supported by the Chinese government. The authors reported that they had no conflicts.

Viral genome data for new CoVs from this study are available in GenBank under accession numbers MN611517 to MN611525.

SOURCE: Li B et al. mSphere 2020 Jan 29;5:e00807-19.

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Enrichment next-generation sequencing (NGS) provides a more cost-efficient and sensitive method for detecting and sequencing novel coronaviruses from wild bat populations, according to a study reported in mSphere, an open-access journal from the American Society for Microbiology.

Wikimedia Commons/Mickey Samuni-Blank

With the appearance of the new zoonotic Wuhan coronavirus, the importance of monitoring the likelihood of new virus risks in wildlife reservoirs has been heightened. Bats in particular have been found to be the most common reservoir of coronaviruses, including being a probable source or mixing vessel for two previous modern epidemic coronaviruses: SARS (severe acute respiratory syndrome) and MERS (Middle East respiratory syndrome).

“We should be alert and vigilant with the knowledge that bat CoVs [coronaviruses] are likely to cause another disease outbreak, not only because of their prevalence but also because the high frequency of recombination between viruses may lead to the generation of viruses with changes in virulence,” according to Bei Li, MD, of the Wuhan (China) Institute of Virology, and colleagues.

“We previously provided serological evidence that [HKU8-related] CoV had jumped over from bats to camels and recombined with MERS-CoV, alerting other researchers that the CoV species could be dangerous. ... Genome-level comparison is needed to monitor the risk of alterations in species tropism and pathogenesis,” according to study authors. They performed a study to develop a more effective and cost efficient method for detecting and sequencing novel coronaviruses in the bat population.



The taxonomy of coronaviruses is particularly complex and may be too narrowly defined, given the high level of genetic plasticity found. There are four genera (Alpha-, Beta-, Gamma-, and Deltacoronavirus) consisting of 38 unique species in the CoV subfamily Orthocoronavirinae, and the number is increasing. Viral taxomists rely on the open reading frame 1b (ORF1b) gene for classification, but viruses in the same species may show great diversity in regions outside ORF1b, confounding the species designation. In particular, bat CoVs classed as the same species can differ significantly in terms of receptor usage or virus-host interaction, as observed in bat SARS-related CoVs, according to the researchers.

The researchers obtained RNA from previous bat CoV surveillance projects, which used bat rectal swabs. Libraries for NGS were constructed from total RNA and processed to generate RNA fragments larger than 300 nucleotides. Following first- and second-strand cDNA synthesis, double-stranded cDNA was purified and the library was amplified by polymerase chain reaction (PCR) technology.

Targeted CoV genome enrichment was achieved using 4,303 customized biotinylated 120-mer baits. These baits were designed from 90 representative CoV genomes, and in silico analysis determined that these baits should target the known CoV species tested. These baits were added and hybridized to the libraries. To capture virus-specific library fragments, streptavidin magnetic beads (which bind to biotin) were added to the hybridization reaction mixture. The beads were then washed to remove unbound DNA. The postcapture virus-specific library fragments were then amplified using a subsequent round of PCR.

The enrichment NGS were retrospectively complemented with unbiased NGS and/or additional Sanger sequencing to obtain full-length genomes. The study showed that enrichment NGS not only decreased the amount of data requiring analysis but produced full-length genome coverage in both laboratory and clinical samples.

Using this technology, the researchers “effectively reduced sequencing costs by increasing the sensitivity of detection. We discovered nine full genomes of bat CoVs in this study and revealed great genetic diversity for eight of them.” In addition, they noted that using standard targeted PCR, which is common practice for many surveillance studies, would not have discovered this diversity.

“We should be alert and vigilant with the knowledge that bat CoVs are likely to cause another disease outbreak, not only because of their prevalence but also because the high frequency of recombination between viruses may lead to the generation of viruses with changes in virulence,” according to the researchers.

“We have provided a cost-effective methodology for bat CoV surveillance. The high genetic diversity observed in our newly sequenced samples suggests further work is needed to characterize these bat CoVs prior to or in the early stages of spillover to humans,” the authors concluded.

This study was supported by the Chinese government. The authors reported that they had no conflicts.

Viral genome data for new CoVs from this study are available in GenBank under accession numbers MN611517 to MN611525.

SOURCE: Li B et al. mSphere 2020 Jan 29;5:e00807-19.

 

Enrichment next-generation sequencing (NGS) provides a more cost-efficient and sensitive method for detecting and sequencing novel coronaviruses from wild bat populations, according to a study reported in mSphere, an open-access journal from the American Society for Microbiology.

Wikimedia Commons/Mickey Samuni-Blank

With the appearance of the new zoonotic Wuhan coronavirus, the importance of monitoring the likelihood of new virus risks in wildlife reservoirs has been heightened. Bats in particular have been found to be the most common reservoir of coronaviruses, including being a probable source or mixing vessel for two previous modern epidemic coronaviruses: SARS (severe acute respiratory syndrome) and MERS (Middle East respiratory syndrome).

“We should be alert and vigilant with the knowledge that bat CoVs [coronaviruses] are likely to cause another disease outbreak, not only because of their prevalence but also because the high frequency of recombination between viruses may lead to the generation of viruses with changes in virulence,” according to Bei Li, MD, of the Wuhan (China) Institute of Virology, and colleagues.

“We previously provided serological evidence that [HKU8-related] CoV had jumped over from bats to camels and recombined with MERS-CoV, alerting other researchers that the CoV species could be dangerous. ... Genome-level comparison is needed to monitor the risk of alterations in species tropism and pathogenesis,” according to study authors. They performed a study to develop a more effective and cost efficient method for detecting and sequencing novel coronaviruses in the bat population.



The taxonomy of coronaviruses is particularly complex and may be too narrowly defined, given the high level of genetic plasticity found. There are four genera (Alpha-, Beta-, Gamma-, and Deltacoronavirus) consisting of 38 unique species in the CoV subfamily Orthocoronavirinae, and the number is increasing. Viral taxomists rely on the open reading frame 1b (ORF1b) gene for classification, but viruses in the same species may show great diversity in regions outside ORF1b, confounding the species designation. In particular, bat CoVs classed as the same species can differ significantly in terms of receptor usage or virus-host interaction, as observed in bat SARS-related CoVs, according to the researchers.

The researchers obtained RNA from previous bat CoV surveillance projects, which used bat rectal swabs. Libraries for NGS were constructed from total RNA and processed to generate RNA fragments larger than 300 nucleotides. Following first- and second-strand cDNA synthesis, double-stranded cDNA was purified and the library was amplified by polymerase chain reaction (PCR) technology.

Targeted CoV genome enrichment was achieved using 4,303 customized biotinylated 120-mer baits. These baits were designed from 90 representative CoV genomes, and in silico analysis determined that these baits should target the known CoV species tested. These baits were added and hybridized to the libraries. To capture virus-specific library fragments, streptavidin magnetic beads (which bind to biotin) were added to the hybridization reaction mixture. The beads were then washed to remove unbound DNA. The postcapture virus-specific library fragments were then amplified using a subsequent round of PCR.

The enrichment NGS were retrospectively complemented with unbiased NGS and/or additional Sanger sequencing to obtain full-length genomes. The study showed that enrichment NGS not only decreased the amount of data requiring analysis but produced full-length genome coverage in both laboratory and clinical samples.

Using this technology, the researchers “effectively reduced sequencing costs by increasing the sensitivity of detection. We discovered nine full genomes of bat CoVs in this study and revealed great genetic diversity for eight of them.” In addition, they noted that using standard targeted PCR, which is common practice for many surveillance studies, would not have discovered this diversity.

“We should be alert and vigilant with the knowledge that bat CoVs are likely to cause another disease outbreak, not only because of their prevalence but also because the high frequency of recombination between viruses may lead to the generation of viruses with changes in virulence,” according to the researchers.

“We have provided a cost-effective methodology for bat CoV surveillance. The high genetic diversity observed in our newly sequenced samples suggests further work is needed to characterize these bat CoVs prior to or in the early stages of spillover to humans,” the authors concluded.

This study was supported by the Chinese government. The authors reported that they had no conflicts.

Viral genome data for new CoVs from this study are available in GenBank under accession numbers MN611517 to MN611525.

SOURCE: Li B et al. mSphere 2020 Jan 29;5:e00807-19.

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FDA okays Palforzia, first drug for peanut allergy in children

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The Food and Drug Administration has approved the first drug to combat peanut allergy in children, (Palforzia, Aimmune Therapeutics), although those who take it must continue to avoid peanuts in their diets.

The peanut (Arachis hypogaea) allergen powder is also the first drug ever approved to treat a food allergy. It is not a cure, but it mitigates allergic reactions, including anaphylaxis, that may occur with accidental exposure to peanuts, the FDA said in a news release.

Treatment with the oral powder, which is mixed into semisolid food – such as applesauce or yogurt – can be started in children aged 4 through 17 years who have a confirmed peanut allergy and then continued as a maintenance medication. Some 1 million American children have peanut allergy, and only a fifth will outgrow the allergy, the agency said.

“Because there is no cure, allergic individuals must strictly avoid exposure to prevent severe and potentially life-threatening reactions,” said Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research, in the statement.

An FDA advisory panel backed the medication in September 2019, but some committee members expressed concern about the large number of children in clinical trials who required epinephrine after receiving a dose of Palforzia.



The initial dose phase is given on a single day, while updosing consists of 11 increasing doses over several months. If the patient tolerates the first administration of an increased dose level, they may continue that dose daily at home. Daily maintenance begins after the completion of all updosing levels.

The drug will carry a boxed warning on the risk of anaphylaxis with the drug, and the FDA is requiring a Risk Evaluation and Mitigation Strategy (REMS).

Palforzia will be available only through specially certified health care providers, health care settings, and pharmacies to patients enrolled in the REMS program, the agency said. Also, the initial dose escalation and first dose of each updosing level can be given only in a certified setting.

The agency said that patients or parents or caregivers must be counseled on the need for constant availability of injectable epinephrine, the need for continued dietary peanut avoidance, and on how to recognize the signs and symptoms of anaphylaxis.

‘Eagerly’ awaited

Palforzia’s effectiveness was based on a randomized, double-blind, placebo-controlled study involving about 500 peanut-allergic individuals that found that 67.2% of allergic patients tolerated an oral challenge with a single 600-mg dose of peanut protein with no more than mild allergic symptoms after 6 months of maintenance treatment, compared with 4% of placebo recipients, the FDA said.

In two double-blind, placebo-controlled studies looking at safety, the most commonly reported side effects among about 700 individuals involved in the research were abdominal pain, vomiting, nausea, tingling in the mouth, itching (including in the mouth and ears), cough, runny nose, throat irritation and tightness, hives, wheezing and shortness of breath, and anaphylaxis.

Palforzia should not be given to those with uncontrolled asthma and can’t be used for emergency treatment of allergic reactions, including anaphylaxis.

“The food allergy community has been eagerly awaiting an FDA-approved treatment that can help mitigate allergic reactions to peanut and, as allergists, we want nothing more than to have a treatment option to offer our patients that has demonstrated both the safety and efficacy to truly impact the lives of patients who live with peanut allergy,” said Christina Ciaccio, MD, chief of Allergy/Immunology and Pediatric Pulmonary Medicine at the University of Chicago Medical Center and Biological Sciences, in a company statement from Aimmune. “With today’s approval of Palforzia, we can – for the first time – offer children and teens with peanut allergy a proven medicine that employs an established therapeutic approach.”

This article first appeared on Medscape.com.

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The Food and Drug Administration has approved the first drug to combat peanut allergy in children, (Palforzia, Aimmune Therapeutics), although those who take it must continue to avoid peanuts in their diets.

The peanut (Arachis hypogaea) allergen powder is also the first drug ever approved to treat a food allergy. It is not a cure, but it mitigates allergic reactions, including anaphylaxis, that may occur with accidental exposure to peanuts, the FDA said in a news release.

Treatment with the oral powder, which is mixed into semisolid food – such as applesauce or yogurt – can be started in children aged 4 through 17 years who have a confirmed peanut allergy and then continued as a maintenance medication. Some 1 million American children have peanut allergy, and only a fifth will outgrow the allergy, the agency said.

“Because there is no cure, allergic individuals must strictly avoid exposure to prevent severe and potentially life-threatening reactions,” said Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research, in the statement.

An FDA advisory panel backed the medication in September 2019, but some committee members expressed concern about the large number of children in clinical trials who required epinephrine after receiving a dose of Palforzia.



The initial dose phase is given on a single day, while updosing consists of 11 increasing doses over several months. If the patient tolerates the first administration of an increased dose level, they may continue that dose daily at home. Daily maintenance begins after the completion of all updosing levels.

The drug will carry a boxed warning on the risk of anaphylaxis with the drug, and the FDA is requiring a Risk Evaluation and Mitigation Strategy (REMS).

Palforzia will be available only through specially certified health care providers, health care settings, and pharmacies to patients enrolled in the REMS program, the agency said. Also, the initial dose escalation and first dose of each updosing level can be given only in a certified setting.

The agency said that patients or parents or caregivers must be counseled on the need for constant availability of injectable epinephrine, the need for continued dietary peanut avoidance, and on how to recognize the signs and symptoms of anaphylaxis.

‘Eagerly’ awaited

Palforzia’s effectiveness was based on a randomized, double-blind, placebo-controlled study involving about 500 peanut-allergic individuals that found that 67.2% of allergic patients tolerated an oral challenge with a single 600-mg dose of peanut protein with no more than mild allergic symptoms after 6 months of maintenance treatment, compared with 4% of placebo recipients, the FDA said.

In two double-blind, placebo-controlled studies looking at safety, the most commonly reported side effects among about 700 individuals involved in the research were abdominal pain, vomiting, nausea, tingling in the mouth, itching (including in the mouth and ears), cough, runny nose, throat irritation and tightness, hives, wheezing and shortness of breath, and anaphylaxis.

Palforzia should not be given to those with uncontrolled asthma and can’t be used for emergency treatment of allergic reactions, including anaphylaxis.

“The food allergy community has been eagerly awaiting an FDA-approved treatment that can help mitigate allergic reactions to peanut and, as allergists, we want nothing more than to have a treatment option to offer our patients that has demonstrated both the safety and efficacy to truly impact the lives of patients who live with peanut allergy,” said Christina Ciaccio, MD, chief of Allergy/Immunology and Pediatric Pulmonary Medicine at the University of Chicago Medical Center and Biological Sciences, in a company statement from Aimmune. “With today’s approval of Palforzia, we can – for the first time – offer children and teens with peanut allergy a proven medicine that employs an established therapeutic approach.”

This article first appeared on Medscape.com.

 

The Food and Drug Administration has approved the first drug to combat peanut allergy in children, (Palforzia, Aimmune Therapeutics), although those who take it must continue to avoid peanuts in their diets.

The peanut (Arachis hypogaea) allergen powder is also the first drug ever approved to treat a food allergy. It is not a cure, but it mitigates allergic reactions, including anaphylaxis, that may occur with accidental exposure to peanuts, the FDA said in a news release.

Treatment with the oral powder, which is mixed into semisolid food – such as applesauce or yogurt – can be started in children aged 4 through 17 years who have a confirmed peanut allergy and then continued as a maintenance medication. Some 1 million American children have peanut allergy, and only a fifth will outgrow the allergy, the agency said.

“Because there is no cure, allergic individuals must strictly avoid exposure to prevent severe and potentially life-threatening reactions,” said Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research, in the statement.

An FDA advisory panel backed the medication in September 2019, but some committee members expressed concern about the large number of children in clinical trials who required epinephrine after receiving a dose of Palforzia.



The initial dose phase is given on a single day, while updosing consists of 11 increasing doses over several months. If the patient tolerates the first administration of an increased dose level, they may continue that dose daily at home. Daily maintenance begins after the completion of all updosing levels.

The drug will carry a boxed warning on the risk of anaphylaxis with the drug, and the FDA is requiring a Risk Evaluation and Mitigation Strategy (REMS).

Palforzia will be available only through specially certified health care providers, health care settings, and pharmacies to patients enrolled in the REMS program, the agency said. Also, the initial dose escalation and first dose of each updosing level can be given only in a certified setting.

The agency said that patients or parents or caregivers must be counseled on the need for constant availability of injectable epinephrine, the need for continued dietary peanut avoidance, and on how to recognize the signs and symptoms of anaphylaxis.

‘Eagerly’ awaited

Palforzia’s effectiveness was based on a randomized, double-blind, placebo-controlled study involving about 500 peanut-allergic individuals that found that 67.2% of allergic patients tolerated an oral challenge with a single 600-mg dose of peanut protein with no more than mild allergic symptoms after 6 months of maintenance treatment, compared with 4% of placebo recipients, the FDA said.

In two double-blind, placebo-controlled studies looking at safety, the most commonly reported side effects among about 700 individuals involved in the research were abdominal pain, vomiting, nausea, tingling in the mouth, itching (including in the mouth and ears), cough, runny nose, throat irritation and tightness, hives, wheezing and shortness of breath, and anaphylaxis.

Palforzia should not be given to those with uncontrolled asthma and can’t be used for emergency treatment of allergic reactions, including anaphylaxis.

“The food allergy community has been eagerly awaiting an FDA-approved treatment that can help mitigate allergic reactions to peanut and, as allergists, we want nothing more than to have a treatment option to offer our patients that has demonstrated both the safety and efficacy to truly impact the lives of patients who live with peanut allergy,” said Christina Ciaccio, MD, chief of Allergy/Immunology and Pediatric Pulmonary Medicine at the University of Chicago Medical Center and Biological Sciences, in a company statement from Aimmune. “With today’s approval of Palforzia, we can – for the first time – offer children and teens with peanut allergy a proven medicine that employs an established therapeutic approach.”

This article first appeared on Medscape.com.

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HHS declares coronavirus emergency, orders quarantine

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The federal government declared a formal public health emergency on Jan. 31 to aid in the response to the 2019 Novel Coronavirus (2019-nCoV). The declaration, issued by Health and Human Services Secretary Alex. M. Azar II gives state, tribal, and local health departments additional flexibility to request assistance from the federal government in responding to the coronavirus.

"While this virus poses a serious public health threat, the risk to the American public remains low at this time, and we are working to keep this risk low."*

The government also began a quarantine of travelers. The 195 passengers who arrived at March Air Reserve Base in Ontario, Calif., from Wuhan, China on Jan. 29 are under federal quarantine amid growing concerns about the 2019-nCoV—the first such action taken by the Centers for Disease Control and Prevention in more than 50 years.

“This decision is based on the current scientific facts,” Nancy Messonnier, MD, director of the National Center for Immunization and Respiratory Diseases, said during a press briefing Jan. 31. “While we understand the action seems drastic, our goal today, tomorrow, and always continues to be the safety of the American public. We would rather be remembered for over-reacting than under-reacting.”

These actions come on the heels of the World Health Organization’s Jan. 30 declaration of 2019-nCoV as a public health emergency of international concern, and from a recent spike in cases reported by Chinese health officials. “Every day this week China has reported additional cases,” Dr. Messonnier said. “Today’s numbers are a 26% increase since yesterday. Over the course of the last week, there have been nearly 7,000 new cases reported. This tells us the virus is continuing to spread rapidly in China. The reported deaths have continued to rise as well. In addition, locations outside China have continued to report cases. There have been an increasing number of reports of person-to-person spread, and now, most recently, a report in the New England Journal of Medicine of asymptomatic spread.”

The quarantine of passengers will last 14 days from when the plane left Wuhan, China. Martin Cetron, MD, who directs the CDC’s Division of Global Migration and Quarantine, said that the quarantine order “offers the greatest level of protection for the American public in preventing introduction and spread. That is our primary concern. Prior epidemics suggest that when people are properly informed, they’re usually very compliant with this request to restrict their movement. This allows someone who would become symptomatic to be rapidly identified. Offering early, rapid diagnosis of their illness could alleviate a lot of anxiety and uncertainty. In addition, this is a protective effect on family members. No individual wants to be the source of introducing or exposing a family member or a loved one to their virus. Additionally, this is part of their civic responsibility to protect their communities.”

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The federal government declared a formal public health emergency on Jan. 31 to aid in the response to the 2019 Novel Coronavirus (2019-nCoV). The declaration, issued by Health and Human Services Secretary Alex. M. Azar II gives state, tribal, and local health departments additional flexibility to request assistance from the federal government in responding to the coronavirus.

"While this virus poses a serious public health threat, the risk to the American public remains low at this time, and we are working to keep this risk low."*

The government also began a quarantine of travelers. The 195 passengers who arrived at March Air Reserve Base in Ontario, Calif., from Wuhan, China on Jan. 29 are under federal quarantine amid growing concerns about the 2019-nCoV—the first such action taken by the Centers for Disease Control and Prevention in more than 50 years.

“This decision is based on the current scientific facts,” Nancy Messonnier, MD, director of the National Center for Immunization and Respiratory Diseases, said during a press briefing Jan. 31. “While we understand the action seems drastic, our goal today, tomorrow, and always continues to be the safety of the American public. We would rather be remembered for over-reacting than under-reacting.”

These actions come on the heels of the World Health Organization’s Jan. 30 declaration of 2019-nCoV as a public health emergency of international concern, and from a recent spike in cases reported by Chinese health officials. “Every day this week China has reported additional cases,” Dr. Messonnier said. “Today’s numbers are a 26% increase since yesterday. Over the course of the last week, there have been nearly 7,000 new cases reported. This tells us the virus is continuing to spread rapidly in China. The reported deaths have continued to rise as well. In addition, locations outside China have continued to report cases. There have been an increasing number of reports of person-to-person spread, and now, most recently, a report in the New England Journal of Medicine of asymptomatic spread.”

The quarantine of passengers will last 14 days from when the plane left Wuhan, China. Martin Cetron, MD, who directs the CDC’s Division of Global Migration and Quarantine, said that the quarantine order “offers the greatest level of protection for the American public in preventing introduction and spread. That is our primary concern. Prior epidemics suggest that when people are properly informed, they’re usually very compliant with this request to restrict their movement. This allows someone who would become symptomatic to be rapidly identified. Offering early, rapid diagnosis of their illness could alleviate a lot of anxiety and uncertainty. In addition, this is a protective effect on family members. No individual wants to be the source of introducing or exposing a family member or a loved one to their virus. Additionally, this is part of their civic responsibility to protect their communities.”

The federal government declared a formal public health emergency on Jan. 31 to aid in the response to the 2019 Novel Coronavirus (2019-nCoV). The declaration, issued by Health and Human Services Secretary Alex. M. Azar II gives state, tribal, and local health departments additional flexibility to request assistance from the federal government in responding to the coronavirus.

"While this virus poses a serious public health threat, the risk to the American public remains low at this time, and we are working to keep this risk low."*

The government also began a quarantine of travelers. The 195 passengers who arrived at March Air Reserve Base in Ontario, Calif., from Wuhan, China on Jan. 29 are under federal quarantine amid growing concerns about the 2019-nCoV—the first such action taken by the Centers for Disease Control and Prevention in more than 50 years.

“This decision is based on the current scientific facts,” Nancy Messonnier, MD, director of the National Center for Immunization and Respiratory Diseases, said during a press briefing Jan. 31. “While we understand the action seems drastic, our goal today, tomorrow, and always continues to be the safety of the American public. We would rather be remembered for over-reacting than under-reacting.”

These actions come on the heels of the World Health Organization’s Jan. 30 declaration of 2019-nCoV as a public health emergency of international concern, and from a recent spike in cases reported by Chinese health officials. “Every day this week China has reported additional cases,” Dr. Messonnier said. “Today’s numbers are a 26% increase since yesterday. Over the course of the last week, there have been nearly 7,000 new cases reported. This tells us the virus is continuing to spread rapidly in China. The reported deaths have continued to rise as well. In addition, locations outside China have continued to report cases. There have been an increasing number of reports of person-to-person spread, and now, most recently, a report in the New England Journal of Medicine of asymptomatic spread.”

The quarantine of passengers will last 14 days from when the plane left Wuhan, China. Martin Cetron, MD, who directs the CDC’s Division of Global Migration and Quarantine, said that the quarantine order “offers the greatest level of protection for the American public in preventing introduction and spread. That is our primary concern. Prior epidemics suggest that when people are properly informed, they’re usually very compliant with this request to restrict their movement. This allows someone who would become symptomatic to be rapidly identified. Offering early, rapid diagnosis of their illness could alleviate a lot of anxiety and uncertainty. In addition, this is a protective effect on family members. No individual wants to be the source of introducing or exposing a family member or a loved one to their virus. Additionally, this is part of their civic responsibility to protect their communities.”

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Is anxiety about the coronavirus out of proportion?

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A number of years ago, a patient I was treating mentioned that she was not eating tomatoes. There had been stories in the news about people contracting bacterial infections from tomatoes, but I paused for a moment, then asked her: “Have there been any contaminated tomatoes here in Maryland?” There had not been and I was still happily eating salsa, but my patient thought about this differently: If disease-causing tomatoes were to come to our state, someone would be the first person to become ill. She did not want to take any risks. My patient, however, was a heavy smoker and already grappling with health issues that were caused by smoking, so I found her choice of what she should worry about and how it influenced her behavior to be perplexing. I realize it’s not the same; nicotine is an addiction, while tomatoes remain a choice for most of us, and it’s common for people to worry about very unlikely events even when we are surrounded by very real and statistically more probable threats to our well-being.

Dr. Dinah Miller

Today’s news reports are filled with stories about 2019 Novel Coronavirus (2019-nCoV), an illness that started in Wuhan, China; as of Jan. 31, 2020, there were 9,776 confirmed cases and 213 deaths. There have been an additional 118 cases reported outside of mainland China, including 6 in the United States, and no one outside of China has died.

The response to the virus has been remarkable: Wuhan, a city of more than 11 million inhabitants, is on lockdown, as are 15 other cities in China; 46 million people have been affected, the largest quarantine in human history. Travel is restricted in parts of China, airports all over the world are screening those who fly in from Wuhan, foreign governments are bringing their citizens home from Wuhan, and even Starbucks has temporarily closed half its stores in China. The economics of containing this virus are astounding.

In the meantime, the Centers for Disease Control and Prevention reports that, as of the week of Jan. 25, there have been 19 million cases of the flu in the United States. Of those stricken, 180,000 people have been hospitalized and 10,000 have died, including 68 pediatric patients. No cities are on lockdown, public transportation runs as usual, airports don’t screen passengers for flu symptoms, and Starbucks continues to serve vanilla lattes to any willing customer. Anxiety about illness is not new; we’ve seen it with SARS, Ebola, measles, and even around Chipotle’s food poisoning cases – to name just a few recent scares. We have also seen a lot of media on vaping-related deaths, and as of early January 2020, vaping-related illnesses affected 2,602 people with 59 deaths. It has been a topic of discussion among legislators, with an emphasis on either outlawing the flavoring that might appeal to younger people or simply outlawing e-cigarettes. No one, however, is talking about outlawing regular cigarettes, despite the fact that many people have switched from cigarettes to vaping products as a way to quit smoking. So, while vaping has caused 59 deaths since 2018, cigarettes are responsible for 480,000 fatalities a year in the United States and smokers live, on average, 10 years less than nonsmokers.

So what fuels anxiety about the latest health scare, and why aren’t we more anxious about the more common causes of premature mortality? Certainly, the newness and the unknown are factors in the coronavirus scare. It’s not certain how this illness was introduced into the human population, although one theory is that it started with the consumption of bats who carry the virus. It’s spreading fast, and in some people, it has been lethal. The incubation period is not known, or whether it is contagious before symptoms appear. Coronavirus is getting a lot of public health attention and the World Health Organization just announced that the virus is a public health emergency of international concern. On the televised news on Jan. 29, 2020, coronavirus was the top story in the United States, even though an impeachment trial is in progress for our country’s president.

The public health response of locking down cities may help contain the outbreak and prevent a global epidemic, although millions of people had already left Wuhan, so the heavy-handed attempt to prevent spread of the virus may well be too late. In the case of the Ebola virus – a much more lethal disease that was also thought to be introduced by bats – public health measures certainly curtailed global spread, and the epidemic of 2014-2016 was limited to 28,600 cases and 11,325 deaths, nearly all of them in West Africa.

Most of the things that cause people to die are not new and are not topics the media chooses to sensationalize. Dissemination of news has changed over the decades, with so much more of it, instant reports on social media, and competition for viewers that leads journalists to pull at our emotions. We might worry about getting food poisoning from romaine lettuce – if that is what the news is focusing on – but we don’t worry when we enter our cars, keep firearms in our homes, or light up cigarettes. And while we may, or may not, get flu shots and avoid those who have the flu, how and where we position both our anxiety and our resources does not always make sense. Certainly some people are predisposed to worry about both common and uncommon dangers, while others seem never to worry and engage in acts that many of us would consider dangerous. If we are looking for logic, it may be hard to find – there are those who would happily go bungee jumping but wouldn’t dream of leaving the house out without hand sanitizer.

The repercussions from this massive response to the Wuhan coronavirus are significant. For the millions of people on lockdown in China, each day gets emotionally harder; some may begin to have issues procuring food, and the financial losses for the economy will be significant. It’s not really possible to know yet if this response is warranted; we do know that infectious diseases can kill millions. The AIDS pandemic has taken the lives of 36 million people since 1981, and the influenza pandemic of 1918 resulted in an estimated 20 million to 50 million deaths after infecting 500 million people. Still, one might wonder if other, more mundane causes of morbidity and mortality – the ones that no longer garner our dread or make it to the front pages – might also be worthy of more hype and resources.

Dr. Miller is coauthor with Annette Hanson, MD, of “Committed: The Battle Over Involuntary Psychiatric Care” (Baltimore: Johns Hopkins University, 2016). She has a private practice and is assistant professor of psychiatry and behavioral sciences at Johns Hopkins, both in Baltimore.

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A number of years ago, a patient I was treating mentioned that she was not eating tomatoes. There had been stories in the news about people contracting bacterial infections from tomatoes, but I paused for a moment, then asked her: “Have there been any contaminated tomatoes here in Maryland?” There had not been and I was still happily eating salsa, but my patient thought about this differently: If disease-causing tomatoes were to come to our state, someone would be the first person to become ill. She did not want to take any risks. My patient, however, was a heavy smoker and already grappling with health issues that were caused by smoking, so I found her choice of what she should worry about and how it influenced her behavior to be perplexing. I realize it’s not the same; nicotine is an addiction, while tomatoes remain a choice for most of us, and it’s common for people to worry about very unlikely events even when we are surrounded by very real and statistically more probable threats to our well-being.

Dr. Dinah Miller

Today’s news reports are filled with stories about 2019 Novel Coronavirus (2019-nCoV), an illness that started in Wuhan, China; as of Jan. 31, 2020, there were 9,776 confirmed cases and 213 deaths. There have been an additional 118 cases reported outside of mainland China, including 6 in the United States, and no one outside of China has died.

The response to the virus has been remarkable: Wuhan, a city of more than 11 million inhabitants, is on lockdown, as are 15 other cities in China; 46 million people have been affected, the largest quarantine in human history. Travel is restricted in parts of China, airports all over the world are screening those who fly in from Wuhan, foreign governments are bringing their citizens home from Wuhan, and even Starbucks has temporarily closed half its stores in China. The economics of containing this virus are astounding.

In the meantime, the Centers for Disease Control and Prevention reports that, as of the week of Jan. 25, there have been 19 million cases of the flu in the United States. Of those stricken, 180,000 people have been hospitalized and 10,000 have died, including 68 pediatric patients. No cities are on lockdown, public transportation runs as usual, airports don’t screen passengers for flu symptoms, and Starbucks continues to serve vanilla lattes to any willing customer. Anxiety about illness is not new; we’ve seen it with SARS, Ebola, measles, and even around Chipotle’s food poisoning cases – to name just a few recent scares. We have also seen a lot of media on vaping-related deaths, and as of early January 2020, vaping-related illnesses affected 2,602 people with 59 deaths. It has been a topic of discussion among legislators, with an emphasis on either outlawing the flavoring that might appeal to younger people or simply outlawing e-cigarettes. No one, however, is talking about outlawing regular cigarettes, despite the fact that many people have switched from cigarettes to vaping products as a way to quit smoking. So, while vaping has caused 59 deaths since 2018, cigarettes are responsible for 480,000 fatalities a year in the United States and smokers live, on average, 10 years less than nonsmokers.

So what fuels anxiety about the latest health scare, and why aren’t we more anxious about the more common causes of premature mortality? Certainly, the newness and the unknown are factors in the coronavirus scare. It’s not certain how this illness was introduced into the human population, although one theory is that it started with the consumption of bats who carry the virus. It’s spreading fast, and in some people, it has been lethal. The incubation period is not known, or whether it is contagious before symptoms appear. Coronavirus is getting a lot of public health attention and the World Health Organization just announced that the virus is a public health emergency of international concern. On the televised news on Jan. 29, 2020, coronavirus was the top story in the United States, even though an impeachment trial is in progress for our country’s president.

The public health response of locking down cities may help contain the outbreak and prevent a global epidemic, although millions of people had already left Wuhan, so the heavy-handed attempt to prevent spread of the virus may well be too late. In the case of the Ebola virus – a much more lethal disease that was also thought to be introduced by bats – public health measures certainly curtailed global spread, and the epidemic of 2014-2016 was limited to 28,600 cases and 11,325 deaths, nearly all of them in West Africa.

Most of the things that cause people to die are not new and are not topics the media chooses to sensationalize. Dissemination of news has changed over the decades, with so much more of it, instant reports on social media, and competition for viewers that leads journalists to pull at our emotions. We might worry about getting food poisoning from romaine lettuce – if that is what the news is focusing on – but we don’t worry when we enter our cars, keep firearms in our homes, or light up cigarettes. And while we may, or may not, get flu shots and avoid those who have the flu, how and where we position both our anxiety and our resources does not always make sense. Certainly some people are predisposed to worry about both common and uncommon dangers, while others seem never to worry and engage in acts that many of us would consider dangerous. If we are looking for logic, it may be hard to find – there are those who would happily go bungee jumping but wouldn’t dream of leaving the house out without hand sanitizer.

The repercussions from this massive response to the Wuhan coronavirus are significant. For the millions of people on lockdown in China, each day gets emotionally harder; some may begin to have issues procuring food, and the financial losses for the economy will be significant. It’s not really possible to know yet if this response is warranted; we do know that infectious diseases can kill millions. The AIDS pandemic has taken the lives of 36 million people since 1981, and the influenza pandemic of 1918 resulted in an estimated 20 million to 50 million deaths after infecting 500 million people. Still, one might wonder if other, more mundane causes of morbidity and mortality – the ones that no longer garner our dread or make it to the front pages – might also be worthy of more hype and resources.

Dr. Miller is coauthor with Annette Hanson, MD, of “Committed: The Battle Over Involuntary Psychiatric Care” (Baltimore: Johns Hopkins University, 2016). She has a private practice and is assistant professor of psychiatry and behavioral sciences at Johns Hopkins, both in Baltimore.

A number of years ago, a patient I was treating mentioned that she was not eating tomatoes. There had been stories in the news about people contracting bacterial infections from tomatoes, but I paused for a moment, then asked her: “Have there been any contaminated tomatoes here in Maryland?” There had not been and I was still happily eating salsa, but my patient thought about this differently: If disease-causing tomatoes were to come to our state, someone would be the first person to become ill. She did not want to take any risks. My patient, however, was a heavy smoker and already grappling with health issues that were caused by smoking, so I found her choice of what she should worry about and how it influenced her behavior to be perplexing. I realize it’s not the same; nicotine is an addiction, while tomatoes remain a choice for most of us, and it’s common for people to worry about very unlikely events even when we are surrounded by very real and statistically more probable threats to our well-being.

Dr. Dinah Miller

Today’s news reports are filled with stories about 2019 Novel Coronavirus (2019-nCoV), an illness that started in Wuhan, China; as of Jan. 31, 2020, there were 9,776 confirmed cases and 213 deaths. There have been an additional 118 cases reported outside of mainland China, including 6 in the United States, and no one outside of China has died.

The response to the virus has been remarkable: Wuhan, a city of more than 11 million inhabitants, is on lockdown, as are 15 other cities in China; 46 million people have been affected, the largest quarantine in human history. Travel is restricted in parts of China, airports all over the world are screening those who fly in from Wuhan, foreign governments are bringing their citizens home from Wuhan, and even Starbucks has temporarily closed half its stores in China. The economics of containing this virus are astounding.

In the meantime, the Centers for Disease Control and Prevention reports that, as of the week of Jan. 25, there have been 19 million cases of the flu in the United States. Of those stricken, 180,000 people have been hospitalized and 10,000 have died, including 68 pediatric patients. No cities are on lockdown, public transportation runs as usual, airports don’t screen passengers for flu symptoms, and Starbucks continues to serve vanilla lattes to any willing customer. Anxiety about illness is not new; we’ve seen it with SARS, Ebola, measles, and even around Chipotle’s food poisoning cases – to name just a few recent scares. We have also seen a lot of media on vaping-related deaths, and as of early January 2020, vaping-related illnesses affected 2,602 people with 59 deaths. It has been a topic of discussion among legislators, with an emphasis on either outlawing the flavoring that might appeal to younger people or simply outlawing e-cigarettes. No one, however, is talking about outlawing regular cigarettes, despite the fact that many people have switched from cigarettes to vaping products as a way to quit smoking. So, while vaping has caused 59 deaths since 2018, cigarettes are responsible for 480,000 fatalities a year in the United States and smokers live, on average, 10 years less than nonsmokers.

So what fuels anxiety about the latest health scare, and why aren’t we more anxious about the more common causes of premature mortality? Certainly, the newness and the unknown are factors in the coronavirus scare. It’s not certain how this illness was introduced into the human population, although one theory is that it started with the consumption of bats who carry the virus. It’s spreading fast, and in some people, it has been lethal. The incubation period is not known, or whether it is contagious before symptoms appear. Coronavirus is getting a lot of public health attention and the World Health Organization just announced that the virus is a public health emergency of international concern. On the televised news on Jan. 29, 2020, coronavirus was the top story in the United States, even though an impeachment trial is in progress for our country’s president.

The public health response of locking down cities may help contain the outbreak and prevent a global epidemic, although millions of people had already left Wuhan, so the heavy-handed attempt to prevent spread of the virus may well be too late. In the case of the Ebola virus – a much more lethal disease that was also thought to be introduced by bats – public health measures certainly curtailed global spread, and the epidemic of 2014-2016 was limited to 28,600 cases and 11,325 deaths, nearly all of them in West Africa.

Most of the things that cause people to die are not new and are not topics the media chooses to sensationalize. Dissemination of news has changed over the decades, with so much more of it, instant reports on social media, and competition for viewers that leads journalists to pull at our emotions. We might worry about getting food poisoning from romaine lettuce – if that is what the news is focusing on – but we don’t worry when we enter our cars, keep firearms in our homes, or light up cigarettes. And while we may, or may not, get flu shots and avoid those who have the flu, how and where we position both our anxiety and our resources does not always make sense. Certainly some people are predisposed to worry about both common and uncommon dangers, while others seem never to worry and engage in acts that many of us would consider dangerous. If we are looking for logic, it may be hard to find – there are those who would happily go bungee jumping but wouldn’t dream of leaving the house out without hand sanitizer.

The repercussions from this massive response to the Wuhan coronavirus are significant. For the millions of people on lockdown in China, each day gets emotionally harder; some may begin to have issues procuring food, and the financial losses for the economy will be significant. It’s not really possible to know yet if this response is warranted; we do know that infectious diseases can kill millions. The AIDS pandemic has taken the lives of 36 million people since 1981, and the influenza pandemic of 1918 resulted in an estimated 20 million to 50 million deaths after infecting 500 million people. Still, one might wonder if other, more mundane causes of morbidity and mortality – the ones that no longer garner our dread or make it to the front pages – might also be worthy of more hype and resources.

Dr. Miller is coauthor with Annette Hanson, MD, of “Committed: The Battle Over Involuntary Psychiatric Care” (Baltimore: Johns Hopkins University, 2016). She has a private practice and is assistant professor of psychiatry and behavioral sciences at Johns Hopkins, both in Baltimore.

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WHO declares public health emergency for novel coronavirus

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Amid the rising spread of the 2019 Novel Coronavirus (2019-nCoV), the World Health Organization (WHO) has declared the virus outbreak a public health emergency of international concern (PHEIC).

WHO.int
Officials participate in a press conference following the second meeting of the Emergency Committee convened by the WHO Director-General. January 30, 2020.

The declaration was made during a press briefing on Jan. 30 after a week of growing concern and pressure on WHO to designate the virus at a higher emergency level. WHO’s Emergency Committee made the nearly unanimous decision after considering the increasing number of coronavirus cases in China, the rising infections outside of China, and the questionable measures some countries are taking regarding travel, said committee chair Didier Houssin, MD, said during the press conference.

As of Jan. 30, there were 8,236 confirmed cases of the coronavirus in China and 171 deaths, with another 112 cases identified outside of China in 21 other countries.

“Declaring a Public Health Emergency of International Concern is likely to facilitate [WHO’s] leadership role for public health measures, holding countries to account concerning additional measures they may take regarding travel, trade, quarantine or screening, research efforts, global coordination and anticipation of economic impact [and] support to vulnerable states,” Dr. Houssin said during the press conference. “Declaring a PHEIC should certainly not be seen as manifestation of distrust in the Chinese authorities and people which are doing tremendous efforts on the frontlines of this outbreak, with transparency, and let us hope, with success.”
 

What happens next?

Once a PHEIC is declared, WHO launches a series of steps, including the release of temporary recommendations for the affected country on health measures to implement and guidance for other countries on preventing and reducing the international spread of the disease, WHO spokesman Tarik Jasarevic said in an interview.

“The purpose of declaring a PHEIC is to advise the world on what measures need to be taken to enhance global health security by preventing international transmission of an infectious hazard,” he said.

Following the Jan. 30 press conference, WHO released temporary guidance for China and for other countries regarding identifying, managing, containing, and preventing the virus. China is advised to continue updating the population about the outbreak, continue enhancing its public health measures for containment and surveillance of cases, and to continue collaboration with WHO and other partners to investigate the epidemiology and evolution of the outbreak and share data on all human cases.

Other countries should be prepared for containment, including the active surveillance, early detection, isolation, case management, and prevention of virus transmission and to share full data with WHO, according to the recommendations.

Under the International Health Regulations (IHR), countries are required to share information and data with WHO. Additionally, WHO leaders advised the global community to support low- and middle-income countries with their response to the coronavirus and to facilitate diagnostics, potential vaccines, and therapeutics in these areas.

The IHR requires that countries implementing health measures that go beyond what WHO recommends must send to WHO the public health rationale and justification within 48 hours of their implementation for WHO review, Mr. Jasarevic noted.

“WHO is obliged to share the information about measures and the justification received with other countries involved,” he said.
 

 

 

PHEIC travel and resource impact

Declaration of a PHEIC means WHO will now oversee any travel restrictions made by other countries in response to 2019-nCoV. The agency recommends that countries conduct a risk and cost-benefit analysis before enacting travel restrictions and other countries are required to inform WHO about any travel measures taken.

“Countries will be asked to provide public health justification for any travel or trade measures that are not scientifically based, such as refusal of entry of suspect cases or unaffected persons to affected areas,” Mr. Jasarevic said in an interview.

As far as resources, the PHEIC mechanism is not a fundraising mechanism, but some donors might consider a PHEIC declaration as a trigger for releasing additional funding to respond to the health threat, he said.

Allison T. Chamberlain, PhD, acting director for the Emory Center for Public Health Preparedness and Research at the Emory Rollins School of Public Health in Atlanta, said national governments and nongovernmental aid organizations are among the most affected by a PHEIC because they are looked at to provide assistance to the most heavily affected areas and to bolster public health preparedness within their own borders.

Dr. Allison Chamberlain

“In terms of resources that are deployed, a Public Health Emergency of International Concern raises levels of international support and commitment to stopping the emergency,” Dr. Chamberlain said in an interview. “By doing so, it gives countries the needed flexibility to release financial resources of their own accord to support things like response teams that might go into heavily affected areas to assist, for instance.”

WHO Director-General Dr. Tedros Adhanom Ghebreyesus stressed that cooperation among countries is key during the PHEIC.

“We can only stop it together,” he said during the press conference. “This is the time for facts, not fear. This is the time for science, not rumors. This is the time for solidarity, not stigma.”

This is the sixth PHEIC declared by WHO in the last 10 years. Such declarations were made for the 2009 H1NI influenza pandemic, the 2014 polio resurgence, the 2014 Ebola outbreak in West Africa, the 2016 Zika virus, and the 2019 Kivu Ebola outbreak in the Democratic Republic of Congo.

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Amid the rising spread of the 2019 Novel Coronavirus (2019-nCoV), the World Health Organization (WHO) has declared the virus outbreak a public health emergency of international concern (PHEIC).

WHO.int
Officials participate in a press conference following the second meeting of the Emergency Committee convened by the WHO Director-General. January 30, 2020.

The declaration was made during a press briefing on Jan. 30 after a week of growing concern and pressure on WHO to designate the virus at a higher emergency level. WHO’s Emergency Committee made the nearly unanimous decision after considering the increasing number of coronavirus cases in China, the rising infections outside of China, and the questionable measures some countries are taking regarding travel, said committee chair Didier Houssin, MD, said during the press conference.

As of Jan. 30, there were 8,236 confirmed cases of the coronavirus in China and 171 deaths, with another 112 cases identified outside of China in 21 other countries.

“Declaring a Public Health Emergency of International Concern is likely to facilitate [WHO’s] leadership role for public health measures, holding countries to account concerning additional measures they may take regarding travel, trade, quarantine or screening, research efforts, global coordination and anticipation of economic impact [and] support to vulnerable states,” Dr. Houssin said during the press conference. “Declaring a PHEIC should certainly not be seen as manifestation of distrust in the Chinese authorities and people which are doing tremendous efforts on the frontlines of this outbreak, with transparency, and let us hope, with success.”
 

What happens next?

Once a PHEIC is declared, WHO launches a series of steps, including the release of temporary recommendations for the affected country on health measures to implement and guidance for other countries on preventing and reducing the international spread of the disease, WHO spokesman Tarik Jasarevic said in an interview.

“The purpose of declaring a PHEIC is to advise the world on what measures need to be taken to enhance global health security by preventing international transmission of an infectious hazard,” he said.

Following the Jan. 30 press conference, WHO released temporary guidance for China and for other countries regarding identifying, managing, containing, and preventing the virus. China is advised to continue updating the population about the outbreak, continue enhancing its public health measures for containment and surveillance of cases, and to continue collaboration with WHO and other partners to investigate the epidemiology and evolution of the outbreak and share data on all human cases.

Other countries should be prepared for containment, including the active surveillance, early detection, isolation, case management, and prevention of virus transmission and to share full data with WHO, according to the recommendations.

Under the International Health Regulations (IHR), countries are required to share information and data with WHO. Additionally, WHO leaders advised the global community to support low- and middle-income countries with their response to the coronavirus and to facilitate diagnostics, potential vaccines, and therapeutics in these areas.

The IHR requires that countries implementing health measures that go beyond what WHO recommends must send to WHO the public health rationale and justification within 48 hours of their implementation for WHO review, Mr. Jasarevic noted.

“WHO is obliged to share the information about measures and the justification received with other countries involved,” he said.
 

 

 

PHEIC travel and resource impact

Declaration of a PHEIC means WHO will now oversee any travel restrictions made by other countries in response to 2019-nCoV. The agency recommends that countries conduct a risk and cost-benefit analysis before enacting travel restrictions and other countries are required to inform WHO about any travel measures taken.

“Countries will be asked to provide public health justification for any travel or trade measures that are not scientifically based, such as refusal of entry of suspect cases or unaffected persons to affected areas,” Mr. Jasarevic said in an interview.

As far as resources, the PHEIC mechanism is not a fundraising mechanism, but some donors might consider a PHEIC declaration as a trigger for releasing additional funding to respond to the health threat, he said.

Allison T. Chamberlain, PhD, acting director for the Emory Center for Public Health Preparedness and Research at the Emory Rollins School of Public Health in Atlanta, said national governments and nongovernmental aid organizations are among the most affected by a PHEIC because they are looked at to provide assistance to the most heavily affected areas and to bolster public health preparedness within their own borders.

Dr. Allison Chamberlain

“In terms of resources that are deployed, a Public Health Emergency of International Concern raises levels of international support and commitment to stopping the emergency,” Dr. Chamberlain said in an interview. “By doing so, it gives countries the needed flexibility to release financial resources of their own accord to support things like response teams that might go into heavily affected areas to assist, for instance.”

WHO Director-General Dr. Tedros Adhanom Ghebreyesus stressed that cooperation among countries is key during the PHEIC.

“We can only stop it together,” he said during the press conference. “This is the time for facts, not fear. This is the time for science, not rumors. This is the time for solidarity, not stigma.”

This is the sixth PHEIC declared by WHO in the last 10 years. Such declarations were made for the 2009 H1NI influenza pandemic, the 2014 polio resurgence, the 2014 Ebola outbreak in West Africa, the 2016 Zika virus, and the 2019 Kivu Ebola outbreak in the Democratic Republic of Congo.

 

Amid the rising spread of the 2019 Novel Coronavirus (2019-nCoV), the World Health Organization (WHO) has declared the virus outbreak a public health emergency of international concern (PHEIC).

WHO.int
Officials participate in a press conference following the second meeting of the Emergency Committee convened by the WHO Director-General. January 30, 2020.

The declaration was made during a press briefing on Jan. 30 after a week of growing concern and pressure on WHO to designate the virus at a higher emergency level. WHO’s Emergency Committee made the nearly unanimous decision after considering the increasing number of coronavirus cases in China, the rising infections outside of China, and the questionable measures some countries are taking regarding travel, said committee chair Didier Houssin, MD, said during the press conference.

As of Jan. 30, there were 8,236 confirmed cases of the coronavirus in China and 171 deaths, with another 112 cases identified outside of China in 21 other countries.

“Declaring a Public Health Emergency of International Concern is likely to facilitate [WHO’s] leadership role for public health measures, holding countries to account concerning additional measures they may take regarding travel, trade, quarantine or screening, research efforts, global coordination and anticipation of economic impact [and] support to vulnerable states,” Dr. Houssin said during the press conference. “Declaring a PHEIC should certainly not be seen as manifestation of distrust in the Chinese authorities and people which are doing tremendous efforts on the frontlines of this outbreak, with transparency, and let us hope, with success.”
 

What happens next?

Once a PHEIC is declared, WHO launches a series of steps, including the release of temporary recommendations for the affected country on health measures to implement and guidance for other countries on preventing and reducing the international spread of the disease, WHO spokesman Tarik Jasarevic said in an interview.

“The purpose of declaring a PHEIC is to advise the world on what measures need to be taken to enhance global health security by preventing international transmission of an infectious hazard,” he said.

Following the Jan. 30 press conference, WHO released temporary guidance for China and for other countries regarding identifying, managing, containing, and preventing the virus. China is advised to continue updating the population about the outbreak, continue enhancing its public health measures for containment and surveillance of cases, and to continue collaboration with WHO and other partners to investigate the epidemiology and evolution of the outbreak and share data on all human cases.

Other countries should be prepared for containment, including the active surveillance, early detection, isolation, case management, and prevention of virus transmission and to share full data with WHO, according to the recommendations.

Under the International Health Regulations (IHR), countries are required to share information and data with WHO. Additionally, WHO leaders advised the global community to support low- and middle-income countries with their response to the coronavirus and to facilitate diagnostics, potential vaccines, and therapeutics in these areas.

The IHR requires that countries implementing health measures that go beyond what WHO recommends must send to WHO the public health rationale and justification within 48 hours of their implementation for WHO review, Mr. Jasarevic noted.

“WHO is obliged to share the information about measures and the justification received with other countries involved,” he said.
 

 

 

PHEIC travel and resource impact

Declaration of a PHEIC means WHO will now oversee any travel restrictions made by other countries in response to 2019-nCoV. The agency recommends that countries conduct a risk and cost-benefit analysis before enacting travel restrictions and other countries are required to inform WHO about any travel measures taken.

“Countries will be asked to provide public health justification for any travel or trade measures that are not scientifically based, such as refusal of entry of suspect cases or unaffected persons to affected areas,” Mr. Jasarevic said in an interview.

As far as resources, the PHEIC mechanism is not a fundraising mechanism, but some donors might consider a PHEIC declaration as a trigger for releasing additional funding to respond to the health threat, he said.

Allison T. Chamberlain, PhD, acting director for the Emory Center for Public Health Preparedness and Research at the Emory Rollins School of Public Health in Atlanta, said national governments and nongovernmental aid organizations are among the most affected by a PHEIC because they are looked at to provide assistance to the most heavily affected areas and to bolster public health preparedness within their own borders.

Dr. Allison Chamberlain

“In terms of resources that are deployed, a Public Health Emergency of International Concern raises levels of international support and commitment to stopping the emergency,” Dr. Chamberlain said in an interview. “By doing so, it gives countries the needed flexibility to release financial resources of their own accord to support things like response teams that might go into heavily affected areas to assist, for instance.”

WHO Director-General Dr. Tedros Adhanom Ghebreyesus stressed that cooperation among countries is key during the PHEIC.

“We can only stop it together,” he said during the press conference. “This is the time for facts, not fear. This is the time for science, not rumors. This is the time for solidarity, not stigma.”

This is the sixth PHEIC declared by WHO in the last 10 years. Such declarations were made for the 2009 H1NI influenza pandemic, the 2014 polio resurgence, the 2014 Ebola outbreak in West Africa, the 2016 Zika virus, and the 2019 Kivu Ebola outbreak in the Democratic Republic of Congo.

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2019 Novel Coronavirus: Frequently asked questions for clinicians

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The 2019 Novel Coronavirus (2019-nCoV) outbreak has unfolded so rapidly that many clinicians are scrambling to stay on top of it. Here are the answers to some frequently asked questions about how to prepare your clinic to respond to this outbreak.

Keep in mind that the outbreak is moving rapidly. Though scientific and epidemiologic knowledge has increased at unprecedented speed, there is much we don’t know, and some of what we think we know will change. Follow the links for the most up-to-date information.

What should our clinic do first?

Plan ahead with the following:

  • Develop a plan for office staff to take travel histories from anyone with a respiratory illness and provide training for those who need it. Travel history at present should include asking about travel to China in the past 14 days, specifically Wuhan city or Hubei province.
  • Review up-to-date infection control practices with all office staff and provide training for those who need it.
  • Take an inventory of supplies of personal protective equipment (PPE), such as gowns, gloves, masks, eye protection, and N95 respirators or powered air-purifying respirators (PAPRs), and order items that are missing or low in stock.
  • Fit-test users of N95 masks for maximal effectiveness.
  • Plan where a potential patient would be isolated while obtaining expert advice.
  • Know whom to contact at the state or local health department if you have a patient with the appropriate travel history.

The Centers for Disease Control and Prevention has prepared a toolkit to help frontline health care professionals prepare for this virus. Providers need to stay up to date on the latest recommendations, as the situation is changing rapidly.

When should I suspect 2019-nCoV illness, and what should I do?

Take the following steps to assess the concern and respond:

  • If a patient with respiratory illness has traveled to China in the past 14 days, immediately put a mask on the patient and move the individual to a private room. Use a negative-pressure room if available.
  • Put on appropriate PPE (including gloves, gown, eye protection, and mask) for contact, droplet, and airborne precautions. CDC recommends an N95 respirator mask if available, although we don’t know yet if there is true airborne spread.
  • Obtain an accurate travel history, including dates and cities. (Tip: Get the correct spelling, as the English spelling of cities in China can cause confusion.)
  • If the patient meets the current CDC definition of “person under investigation” or PUI, or if you need guidance on how to proceed, notify infection control (if you are in a facility that has it) and call your state or local health department immediately.
  • Contact public health authorities who can help decide whether the patient should be admitted to airborne isolation or monitored at home with appropriate precautions.
 

 

What is the definition of a PUI?

The current definition of a PUI is a person who has fever and symptoms of a respiratory infection (cough, shortness of breath) AND who has EITHER been in Wuhan city or Hubei province in the past 14 days OR had close contact with a person either under investigation for 2019-nCoV infection or with confirmed infection. The definition of a PUI will change over time, so check this link.

How can I test for 2019-nCoV?

As of Jan. 30, 2020, testing is by polymerase chain reaction (PCR) and is available in the United States only through the CDC in Atlanta. Testing should soon be available in state health department laboratories. If public health authorities decide that your patient should be tested, they will instruct you on which samples to obtain.

The full sequence of 2019-nCoV has been shared, so some reference laboratories may develop and validate tests, ideally with assistance from CDC. If testing becomes available, make certain that it is a reputable lab that has carefully validated the test.

Should I test for other viruses?

Because the symptoms of 2019-nCoV infection overlap with those of influenza and other respiratory viruses, PCR testing for other viruses should be considered if it will change management (i.e., change the decision to provide influenza antivirals). Use appropriate PPE while collecting specimens, including eye protection. If 2019-nCoV is a consideration, you may want to send the specimen to a hospital lab for testing, where the sample will be processed under a biosafety hood, rather than doing point-of-care testing in the office.

How dangerous is 2019-nCoV?

The current estimated mortality rate is 2%-3%. That is probably an overestimate, as those with severe disease and those who die are more likely to be tested and reported early in an epidemic.

Our current knowledge is based on preliminary reports from hospitalized patients and will probably change. From the speed of spread and a single family cluster, it seems likely that there are milder cases and perhaps asymptomatic infection.

What else do I need to know about coronaviruses?

Coronaviruses are a large and diverse group of viruses, many of which are animal viruses. Before the discovery of the 2019-nCoV, six coronaviruses were known to infect humans. Four of these (HKU1, NL63, OC43, and 229E) predominantly caused mild to moderate upper respiratory illness, and they are thought to be responsible for 10%-30% of colds. They occasionally cause viral pneumonia and can be detected by some commercial multiplex panels.

Two other coronaviruses have caused outbreaks of severe respiratory illness in people: SARS, which emerged in Southern China in 2002, and MERS in the Middle East, in 2012. Unlike SARS, sporadic cases of MERS continue to occur.

The current outbreak is caused by 2019-nCoV, a previously unknown beta coronavirus. It is most closely related (~96%) to a bat virus and shares about 80% sequence homology with SARS CoV.

Andrew T. Pavia, MD, is the George and Esther Gross Presidential Professor and chief of the division of pediatric infectious disease in the department of pediatrics at the University of Utah, Salt Lake City. He is also director of hospital epidemiology and associate director of antimicrobial stewardship at Primary Children’s Hospital, Salt Lake City. Dr. Pavia has disclosed that he has served as a consultant for Genentech, Merck, and Seqirus and that he has served as associate editor for The Sanford Guide.

This article first appeared on Medscape.com.

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The 2019 Novel Coronavirus (2019-nCoV) outbreak has unfolded so rapidly that many clinicians are scrambling to stay on top of it. Here are the answers to some frequently asked questions about how to prepare your clinic to respond to this outbreak.

Keep in mind that the outbreak is moving rapidly. Though scientific and epidemiologic knowledge has increased at unprecedented speed, there is much we don’t know, and some of what we think we know will change. Follow the links for the most up-to-date information.

What should our clinic do first?

Plan ahead with the following:

  • Develop a plan for office staff to take travel histories from anyone with a respiratory illness and provide training for those who need it. Travel history at present should include asking about travel to China in the past 14 days, specifically Wuhan city or Hubei province.
  • Review up-to-date infection control practices with all office staff and provide training for those who need it.
  • Take an inventory of supplies of personal protective equipment (PPE), such as gowns, gloves, masks, eye protection, and N95 respirators or powered air-purifying respirators (PAPRs), and order items that are missing or low in stock.
  • Fit-test users of N95 masks for maximal effectiveness.
  • Plan where a potential patient would be isolated while obtaining expert advice.
  • Know whom to contact at the state or local health department if you have a patient with the appropriate travel history.

The Centers for Disease Control and Prevention has prepared a toolkit to help frontline health care professionals prepare for this virus. Providers need to stay up to date on the latest recommendations, as the situation is changing rapidly.

When should I suspect 2019-nCoV illness, and what should I do?

Take the following steps to assess the concern and respond:

  • If a patient with respiratory illness has traveled to China in the past 14 days, immediately put a mask on the patient and move the individual to a private room. Use a negative-pressure room if available.
  • Put on appropriate PPE (including gloves, gown, eye protection, and mask) for contact, droplet, and airborne precautions. CDC recommends an N95 respirator mask if available, although we don’t know yet if there is true airborne spread.
  • Obtain an accurate travel history, including dates and cities. (Tip: Get the correct spelling, as the English spelling of cities in China can cause confusion.)
  • If the patient meets the current CDC definition of “person under investigation” or PUI, or if you need guidance on how to proceed, notify infection control (if you are in a facility that has it) and call your state or local health department immediately.
  • Contact public health authorities who can help decide whether the patient should be admitted to airborne isolation or monitored at home with appropriate precautions.
 

 

What is the definition of a PUI?

The current definition of a PUI is a person who has fever and symptoms of a respiratory infection (cough, shortness of breath) AND who has EITHER been in Wuhan city or Hubei province in the past 14 days OR had close contact with a person either under investigation for 2019-nCoV infection or with confirmed infection. The definition of a PUI will change over time, so check this link.

How can I test for 2019-nCoV?

As of Jan. 30, 2020, testing is by polymerase chain reaction (PCR) and is available in the United States only through the CDC in Atlanta. Testing should soon be available in state health department laboratories. If public health authorities decide that your patient should be tested, they will instruct you on which samples to obtain.

The full sequence of 2019-nCoV has been shared, so some reference laboratories may develop and validate tests, ideally with assistance from CDC. If testing becomes available, make certain that it is a reputable lab that has carefully validated the test.

Should I test for other viruses?

Because the symptoms of 2019-nCoV infection overlap with those of influenza and other respiratory viruses, PCR testing for other viruses should be considered if it will change management (i.e., change the decision to provide influenza antivirals). Use appropriate PPE while collecting specimens, including eye protection. If 2019-nCoV is a consideration, you may want to send the specimen to a hospital lab for testing, where the sample will be processed under a biosafety hood, rather than doing point-of-care testing in the office.

How dangerous is 2019-nCoV?

The current estimated mortality rate is 2%-3%. That is probably an overestimate, as those with severe disease and those who die are more likely to be tested and reported early in an epidemic.

Our current knowledge is based on preliminary reports from hospitalized patients and will probably change. From the speed of spread and a single family cluster, it seems likely that there are milder cases and perhaps asymptomatic infection.

What else do I need to know about coronaviruses?

Coronaviruses are a large and diverse group of viruses, many of which are animal viruses. Before the discovery of the 2019-nCoV, six coronaviruses were known to infect humans. Four of these (HKU1, NL63, OC43, and 229E) predominantly caused mild to moderate upper respiratory illness, and they are thought to be responsible for 10%-30% of colds. They occasionally cause viral pneumonia and can be detected by some commercial multiplex panels.

Two other coronaviruses have caused outbreaks of severe respiratory illness in people: SARS, which emerged in Southern China in 2002, and MERS in the Middle East, in 2012. Unlike SARS, sporadic cases of MERS continue to occur.

The current outbreak is caused by 2019-nCoV, a previously unknown beta coronavirus. It is most closely related (~96%) to a bat virus and shares about 80% sequence homology with SARS CoV.

Andrew T. Pavia, MD, is the George and Esther Gross Presidential Professor and chief of the division of pediatric infectious disease in the department of pediatrics at the University of Utah, Salt Lake City. He is also director of hospital epidemiology and associate director of antimicrobial stewardship at Primary Children’s Hospital, Salt Lake City. Dr. Pavia has disclosed that he has served as a consultant for Genentech, Merck, and Seqirus and that he has served as associate editor for The Sanford Guide.

This article first appeared on Medscape.com.

The 2019 Novel Coronavirus (2019-nCoV) outbreak has unfolded so rapidly that many clinicians are scrambling to stay on top of it. Here are the answers to some frequently asked questions about how to prepare your clinic to respond to this outbreak.

Keep in mind that the outbreak is moving rapidly. Though scientific and epidemiologic knowledge has increased at unprecedented speed, there is much we don’t know, and some of what we think we know will change. Follow the links for the most up-to-date information.

What should our clinic do first?

Plan ahead with the following:

  • Develop a plan for office staff to take travel histories from anyone with a respiratory illness and provide training for those who need it. Travel history at present should include asking about travel to China in the past 14 days, specifically Wuhan city or Hubei province.
  • Review up-to-date infection control practices with all office staff and provide training for those who need it.
  • Take an inventory of supplies of personal protective equipment (PPE), such as gowns, gloves, masks, eye protection, and N95 respirators or powered air-purifying respirators (PAPRs), and order items that are missing or low in stock.
  • Fit-test users of N95 masks for maximal effectiveness.
  • Plan where a potential patient would be isolated while obtaining expert advice.
  • Know whom to contact at the state or local health department if you have a patient with the appropriate travel history.

The Centers for Disease Control and Prevention has prepared a toolkit to help frontline health care professionals prepare for this virus. Providers need to stay up to date on the latest recommendations, as the situation is changing rapidly.

When should I suspect 2019-nCoV illness, and what should I do?

Take the following steps to assess the concern and respond:

  • If a patient with respiratory illness has traveled to China in the past 14 days, immediately put a mask on the patient and move the individual to a private room. Use a negative-pressure room if available.
  • Put on appropriate PPE (including gloves, gown, eye protection, and mask) for contact, droplet, and airborne precautions. CDC recommends an N95 respirator mask if available, although we don’t know yet if there is true airborne spread.
  • Obtain an accurate travel history, including dates and cities. (Tip: Get the correct spelling, as the English spelling of cities in China can cause confusion.)
  • If the patient meets the current CDC definition of “person under investigation” or PUI, or if you need guidance on how to proceed, notify infection control (if you are in a facility that has it) and call your state or local health department immediately.
  • Contact public health authorities who can help decide whether the patient should be admitted to airborne isolation or monitored at home with appropriate precautions.
 

 

What is the definition of a PUI?

The current definition of a PUI is a person who has fever and symptoms of a respiratory infection (cough, shortness of breath) AND who has EITHER been in Wuhan city or Hubei province in the past 14 days OR had close contact with a person either under investigation for 2019-nCoV infection or with confirmed infection. The definition of a PUI will change over time, so check this link.

How can I test for 2019-nCoV?

As of Jan. 30, 2020, testing is by polymerase chain reaction (PCR) and is available in the United States only through the CDC in Atlanta. Testing should soon be available in state health department laboratories. If public health authorities decide that your patient should be tested, they will instruct you on which samples to obtain.

The full sequence of 2019-nCoV has been shared, so some reference laboratories may develop and validate tests, ideally with assistance from CDC. If testing becomes available, make certain that it is a reputable lab that has carefully validated the test.

Should I test for other viruses?

Because the symptoms of 2019-nCoV infection overlap with those of influenza and other respiratory viruses, PCR testing for other viruses should be considered if it will change management (i.e., change the decision to provide influenza antivirals). Use appropriate PPE while collecting specimens, including eye protection. If 2019-nCoV is a consideration, you may want to send the specimen to a hospital lab for testing, where the sample will be processed under a biosafety hood, rather than doing point-of-care testing in the office.

How dangerous is 2019-nCoV?

The current estimated mortality rate is 2%-3%. That is probably an overestimate, as those with severe disease and those who die are more likely to be tested and reported early in an epidemic.

Our current knowledge is based on preliminary reports from hospitalized patients and will probably change. From the speed of spread and a single family cluster, it seems likely that there are milder cases and perhaps asymptomatic infection.

What else do I need to know about coronaviruses?

Coronaviruses are a large and diverse group of viruses, many of which are animal viruses. Before the discovery of the 2019-nCoV, six coronaviruses were known to infect humans. Four of these (HKU1, NL63, OC43, and 229E) predominantly caused mild to moderate upper respiratory illness, and they are thought to be responsible for 10%-30% of colds. They occasionally cause viral pneumonia and can be detected by some commercial multiplex panels.

Two other coronaviruses have caused outbreaks of severe respiratory illness in people: SARS, which emerged in Southern China in 2002, and MERS in the Middle East, in 2012. Unlike SARS, sporadic cases of MERS continue to occur.

The current outbreak is caused by 2019-nCoV, a previously unknown beta coronavirus. It is most closely related (~96%) to a bat virus and shares about 80% sequence homology with SARS CoV.

Andrew T. Pavia, MD, is the George and Esther Gross Presidential Professor and chief of the division of pediatric infectious disease in the department of pediatrics at the University of Utah, Salt Lake City. He is also director of hospital epidemiology and associate director of antimicrobial stewardship at Primary Children’s Hospital, Salt Lake City. Dr. Pavia has disclosed that he has served as a consultant for Genentech, Merck, and Seqirus and that he has served as associate editor for The Sanford Guide.

This article first appeared on Medscape.com.

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CDC: First person-to-person spread of novel coronavirus in U.S.

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A Chicago woman in her 60s who tested positive for the 2019 Novel Coronavirus (2019-nCoV) after returning from Wuhan, China, earlier this month has infected her husband, becoming the first known instance of person-to-person transmission of the 2019-nCoV in the United States.

James Gathany/Centers for Disease Control and Prevention
The Centers for Disease Control and Prevention's headquarters in Atlanta

“Limited person-to-person spread of this new virus outside of China has already been seen in nine close contacts, where travelers were infected and transmitted the virus to someone else,” Robert R. Redfield, MD, director of the Centers for Disease Control and Prevention, said during a press briefing on Jan. 30, 2020. “However, the full picture of how easy and how sustainable this virus can spread is unclear. Today’s news underscores the important risk-dependent exposure. The vast majority of Americans have not had recent travel to China, where sustained human-to-human transmission is occurring. Individuals who are close personal contacts of cases, though, could have a risk.”

The affected man, also in his 60s, is the spouse of the first confirmed travel-associated case of 2019-nCoV to be reported in the state of Illinois, according to Ngozi O. Ezike, MD, director of the Illinois Department of Public Health. The man had no history of recent travel to China. “This person-to-person spread was between two very close contacts: a wife and husband,” said Dr. Ezike, who added that 21 individuals in the state are under investigation for 2019-nCoV. “The virus is not spreading widely across the community. At this time, we are not recommending that people in the general public take additional precautions such as canceling activities or avoiding going out. While there is concern with this second case, public health officials are actively monitoring close contacts, including health care workers, and we believe that people in Illinois are at low risk.”

Jennifer Layden, MD, state epidemiologist at the Illinois Department of Public Health, said that the infected Chicago woman returned from Wuhan, China on Jan. 13, 2020. She is hospitalized in stable condition “and continues to do well,” Dr. Layden said. “Public health officials have been actively and closely monitoring individuals who had contacts with her, including her husband, who had close contact for symptoms. He recently began reporting symptoms and was immediately admitted to the hospital and placed in an isolation room, where he is in stable condition. We are actively monitoring individuals such as health care workers, household contacts, and others who were in contact with either of the confirmed cases in the goal to contain and reduce the risk of additional transmission.”

Nancy Messonnier, MD, director, National Center for Immunization and Respiratory Diseases, expects that more cases of 2019-nCoV will transpire in the United States.

“More cases means the potential for more person-to-person spread,” Dr. Messonnier said. “We’re trying to strike a balance in our response right now. We want to be aggressive, but we want our actions to be evidence-based and appropriate for the current circumstance. For example, CDC does not currently recommend use of face masks for the general public. The virus is not spreading in the general community.”

 

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A Chicago woman in her 60s who tested positive for the 2019 Novel Coronavirus (2019-nCoV) after returning from Wuhan, China, earlier this month has infected her husband, becoming the first known instance of person-to-person transmission of the 2019-nCoV in the United States.

James Gathany/Centers for Disease Control and Prevention
The Centers for Disease Control and Prevention's headquarters in Atlanta

“Limited person-to-person spread of this new virus outside of China has already been seen in nine close contacts, where travelers were infected and transmitted the virus to someone else,” Robert R. Redfield, MD, director of the Centers for Disease Control and Prevention, said during a press briefing on Jan. 30, 2020. “However, the full picture of how easy and how sustainable this virus can spread is unclear. Today’s news underscores the important risk-dependent exposure. The vast majority of Americans have not had recent travel to China, where sustained human-to-human transmission is occurring. Individuals who are close personal contacts of cases, though, could have a risk.”

The affected man, also in his 60s, is the spouse of the first confirmed travel-associated case of 2019-nCoV to be reported in the state of Illinois, according to Ngozi O. Ezike, MD, director of the Illinois Department of Public Health. The man had no history of recent travel to China. “This person-to-person spread was between two very close contacts: a wife and husband,” said Dr. Ezike, who added that 21 individuals in the state are under investigation for 2019-nCoV. “The virus is not spreading widely across the community. At this time, we are not recommending that people in the general public take additional precautions such as canceling activities or avoiding going out. While there is concern with this second case, public health officials are actively monitoring close contacts, including health care workers, and we believe that people in Illinois are at low risk.”

Jennifer Layden, MD, state epidemiologist at the Illinois Department of Public Health, said that the infected Chicago woman returned from Wuhan, China on Jan. 13, 2020. She is hospitalized in stable condition “and continues to do well,” Dr. Layden said. “Public health officials have been actively and closely monitoring individuals who had contacts with her, including her husband, who had close contact for symptoms. He recently began reporting symptoms and was immediately admitted to the hospital and placed in an isolation room, where he is in stable condition. We are actively monitoring individuals such as health care workers, household contacts, and others who were in contact with either of the confirmed cases in the goal to contain and reduce the risk of additional transmission.”

Nancy Messonnier, MD, director, National Center for Immunization and Respiratory Diseases, expects that more cases of 2019-nCoV will transpire in the United States.

“More cases means the potential for more person-to-person spread,” Dr. Messonnier said. “We’re trying to strike a balance in our response right now. We want to be aggressive, but we want our actions to be evidence-based and appropriate for the current circumstance. For example, CDC does not currently recommend use of face masks for the general public. The virus is not spreading in the general community.”

 

A Chicago woman in her 60s who tested positive for the 2019 Novel Coronavirus (2019-nCoV) after returning from Wuhan, China, earlier this month has infected her husband, becoming the first known instance of person-to-person transmission of the 2019-nCoV in the United States.

James Gathany/Centers for Disease Control and Prevention
The Centers for Disease Control and Prevention's headquarters in Atlanta

“Limited person-to-person spread of this new virus outside of China has already been seen in nine close contacts, where travelers were infected and transmitted the virus to someone else,” Robert R. Redfield, MD, director of the Centers for Disease Control and Prevention, said during a press briefing on Jan. 30, 2020. “However, the full picture of how easy and how sustainable this virus can spread is unclear. Today’s news underscores the important risk-dependent exposure. The vast majority of Americans have not had recent travel to China, where sustained human-to-human transmission is occurring. Individuals who are close personal contacts of cases, though, could have a risk.”

The affected man, also in his 60s, is the spouse of the first confirmed travel-associated case of 2019-nCoV to be reported in the state of Illinois, according to Ngozi O. Ezike, MD, director of the Illinois Department of Public Health. The man had no history of recent travel to China. “This person-to-person spread was between two very close contacts: a wife and husband,” said Dr. Ezike, who added that 21 individuals in the state are under investigation for 2019-nCoV. “The virus is not spreading widely across the community. At this time, we are not recommending that people in the general public take additional precautions such as canceling activities or avoiding going out. While there is concern with this second case, public health officials are actively monitoring close contacts, including health care workers, and we believe that people in Illinois are at low risk.”

Jennifer Layden, MD, state epidemiologist at the Illinois Department of Public Health, said that the infected Chicago woman returned from Wuhan, China on Jan. 13, 2020. She is hospitalized in stable condition “and continues to do well,” Dr. Layden said. “Public health officials have been actively and closely monitoring individuals who had contacts with her, including her husband, who had close contact for symptoms. He recently began reporting symptoms and was immediately admitted to the hospital and placed in an isolation room, where he is in stable condition. We are actively monitoring individuals such as health care workers, household contacts, and others who were in contact with either of the confirmed cases in the goal to contain and reduce the risk of additional transmission.”

Nancy Messonnier, MD, director, National Center for Immunization and Respiratory Diseases, expects that more cases of 2019-nCoV will transpire in the United States.

“More cases means the potential for more person-to-person spread,” Dr. Messonnier said. “We’re trying to strike a balance in our response right now. We want to be aggressive, but we want our actions to be evidence-based and appropriate for the current circumstance. For example, CDC does not currently recommend use of face masks for the general public. The virus is not spreading in the general community.”

 

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Smoking ban in cars: 72% relative drop in percentage of kids’ smoke exposure

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England’s ban on smoking in cars carrying children led to a 72% relative reduction in the percentage of children self-reporting exposure to tobacco smoke in cars.

“Given children’s known vulnerability to secondhand smoke, reductions in exposure will probably result in improved health,” wrote Anthony A. Laverty, PhD, of Imperial College London and coauthors. Their findings were published in Thorax.

To determine the impact of a 2015 ban on smoking in cars carrying children in England and a 2016 ban in Scotland, the researchers analyzed survey data from 2012, 2014, and 2016 for each of the two countries. In England, children aged 13-15 years were asked, “In the past year, how often were you in a car with somebody smoking?” In Scotland, they were asked, “Are you regularly exposed to other people’s tobacco smoke in any of these places?” with cars/vehicles being one of the options.

Overall, 15,318 responses were received in England and 822 were received in Scotland. In England, self-reported regular exposure to smoke in cars was 6% in 2012, 6% in 2014 and 2% in 2016. In Scotland, it was 3% in 2012, 2% in 2014 and 1% in 2016. From 2014-2016 in England, implementation of the smoke-free policy was associated with a 4% absolute reduction – or a 72% relative reduction – in the percentage of children self-reporting exposure.

The authors acknowledged their study’s limitations, including exposure being based on self-reporting alone and the analyses using only three data points. “Future analyses with more data are recommended,” they wrote, “and may provide discrepant results.”

The study was funded by the National Institute for Health Research School for Public Health Research. One author was funded by the Medical Research Council on a clinician scientist fellowship. The others reported no potential conflicts of interest.

SOURCE: Laverty AA et al. Thorax. 2020 Jan 27. doi: 10.1136/thoraxjnl-2019-213998.

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England’s ban on smoking in cars carrying children led to a 72% relative reduction in the percentage of children self-reporting exposure to tobacco smoke in cars.

“Given children’s known vulnerability to secondhand smoke, reductions in exposure will probably result in improved health,” wrote Anthony A. Laverty, PhD, of Imperial College London and coauthors. Their findings were published in Thorax.

To determine the impact of a 2015 ban on smoking in cars carrying children in England and a 2016 ban in Scotland, the researchers analyzed survey data from 2012, 2014, and 2016 for each of the two countries. In England, children aged 13-15 years were asked, “In the past year, how often were you in a car with somebody smoking?” In Scotland, they were asked, “Are you regularly exposed to other people’s tobacco smoke in any of these places?” with cars/vehicles being one of the options.

Overall, 15,318 responses were received in England and 822 were received in Scotland. In England, self-reported regular exposure to smoke in cars was 6% in 2012, 6% in 2014 and 2% in 2016. In Scotland, it was 3% in 2012, 2% in 2014 and 1% in 2016. From 2014-2016 in England, implementation of the smoke-free policy was associated with a 4% absolute reduction – or a 72% relative reduction – in the percentage of children self-reporting exposure.

The authors acknowledged their study’s limitations, including exposure being based on self-reporting alone and the analyses using only three data points. “Future analyses with more data are recommended,” they wrote, “and may provide discrepant results.”

The study was funded by the National Institute for Health Research School for Public Health Research. One author was funded by the Medical Research Council on a clinician scientist fellowship. The others reported no potential conflicts of interest.

SOURCE: Laverty AA et al. Thorax. 2020 Jan 27. doi: 10.1136/thoraxjnl-2019-213998.

England’s ban on smoking in cars carrying children led to a 72% relative reduction in the percentage of children self-reporting exposure to tobacco smoke in cars.

“Given children’s known vulnerability to secondhand smoke, reductions in exposure will probably result in improved health,” wrote Anthony A. Laverty, PhD, of Imperial College London and coauthors. Their findings were published in Thorax.

To determine the impact of a 2015 ban on smoking in cars carrying children in England and a 2016 ban in Scotland, the researchers analyzed survey data from 2012, 2014, and 2016 for each of the two countries. In England, children aged 13-15 years were asked, “In the past year, how often were you in a car with somebody smoking?” In Scotland, they were asked, “Are you regularly exposed to other people’s tobacco smoke in any of these places?” with cars/vehicles being one of the options.

Overall, 15,318 responses were received in England and 822 were received in Scotland. In England, self-reported regular exposure to smoke in cars was 6% in 2012, 6% in 2014 and 2% in 2016. In Scotland, it was 3% in 2012, 2% in 2014 and 1% in 2016. From 2014-2016 in England, implementation of the smoke-free policy was associated with a 4% absolute reduction – or a 72% relative reduction – in the percentage of children self-reporting exposure.

The authors acknowledged their study’s limitations, including exposure being based on self-reporting alone and the analyses using only three data points. “Future analyses with more data are recommended,” they wrote, “and may provide discrepant results.”

The study was funded by the National Institute for Health Research School for Public Health Research. One author was funded by the Medical Research Council on a clinician scientist fellowship. The others reported no potential conflicts of interest.

SOURCE: Laverty AA et al. Thorax. 2020 Jan 27. doi: 10.1136/thoraxjnl-2019-213998.

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CDC: Risk in U.S. from 2019-nCoV remains low

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A total of 165 persons in the United States are under investigation for infection with the 2019 Novel Coronavirus (2019-nCoV), with 68 testing negative and only 5 confirming positive, according to data presented Jan. 29 during a Centers for Disease Control and Prevention (CDC) briefing. 

The remaining samples are in transit or are being processed at the CDC for testing, Nancy Messonnier, MD, director of the National Center for Immunization and Respiratory Diseases, said during the briefing.

“The genetic sequence for all five viruses detected in the United States to date has been uploaded to the CDC website,” she said. “We are working quickly through the process to get the CDC-developed test into the hands of public health partners in the U.S. and internationally.”

Dr. Messonnier reported that the CDC is expanding screening efforts to U.S. ports of entry that house CDC quarantine stations. Also, in collaboration with U.S. Customs and Border Protection, the agency is expanding distribution of travel health education materials to all travelers from China.

“The good news here is that, despite an aggressive public health investigation to find new cases [of 2019-nCoV], we have not,” she said. “The situation in China is concerning, however, we are looking hard here in the U.S. We will continue to be proactive. I still expect that we will find additional cases.”

In another development, the federal government facilitated the return of a plane full of U.S. citizens living in Wuhan, China, to March Air Reserve Force Base in Riverside County, Calif. “We have taken every precaution to ensure their safety while also continuing to protect the health of our nation and the people around them,” Dr. Messonnier said.

All 195 passengers have been screened, monitored, and evaluated by medical personnel “every step of the way,” including before takeoff, during the flight, during a refueling stop in Alaska, and again upon landing at March Air Reserve Force Base on Jan. 28. “All 195 patients are without the symptoms of the novel coronavirus, and all have been assigned living quarters at the Air Force base,” Dr. Messonnier said.

The CDC has launched a second stage of further screening and information gathering from the passengers, who will be offered testing as part of a thorough risk assessment.

“I understand that many people in the U.S. are worried about this virus and whether it will affect them,” Dr. Messonnier said. “Outbreaks like this are always concerning, particularly when a new virus is emerging. But we are well prepared and working closely with federal, state, and local partners to protect our communities and others nationwide from this public health threat. At this time, we continue to believe that the immediate health risk from this new virus to the general American public is low.”

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A total of 165 persons in the United States are under investigation for infection with the 2019 Novel Coronavirus (2019-nCoV), with 68 testing negative and only 5 confirming positive, according to data presented Jan. 29 during a Centers for Disease Control and Prevention (CDC) briefing. 

The remaining samples are in transit or are being processed at the CDC for testing, Nancy Messonnier, MD, director of the National Center for Immunization and Respiratory Diseases, said during the briefing.

“The genetic sequence for all five viruses detected in the United States to date has been uploaded to the CDC website,” she said. “We are working quickly through the process to get the CDC-developed test into the hands of public health partners in the U.S. and internationally.”

Dr. Messonnier reported that the CDC is expanding screening efforts to U.S. ports of entry that house CDC quarantine stations. Also, in collaboration with U.S. Customs and Border Protection, the agency is expanding distribution of travel health education materials to all travelers from China.

“The good news here is that, despite an aggressive public health investigation to find new cases [of 2019-nCoV], we have not,” she said. “The situation in China is concerning, however, we are looking hard here in the U.S. We will continue to be proactive. I still expect that we will find additional cases.”

In another development, the federal government facilitated the return of a plane full of U.S. citizens living in Wuhan, China, to March Air Reserve Force Base in Riverside County, Calif. “We have taken every precaution to ensure their safety while also continuing to protect the health of our nation and the people around them,” Dr. Messonnier said.

All 195 passengers have been screened, monitored, and evaluated by medical personnel “every step of the way,” including before takeoff, during the flight, during a refueling stop in Alaska, and again upon landing at March Air Reserve Force Base on Jan. 28. “All 195 patients are without the symptoms of the novel coronavirus, and all have been assigned living quarters at the Air Force base,” Dr. Messonnier said.

The CDC has launched a second stage of further screening and information gathering from the passengers, who will be offered testing as part of a thorough risk assessment.

“I understand that many people in the U.S. are worried about this virus and whether it will affect them,” Dr. Messonnier said. “Outbreaks like this are always concerning, particularly when a new virus is emerging. But we are well prepared and working closely with federal, state, and local partners to protect our communities and others nationwide from this public health threat. At this time, we continue to believe that the immediate health risk from this new virus to the general American public is low.”

A total of 165 persons in the United States are under investigation for infection with the 2019 Novel Coronavirus (2019-nCoV), with 68 testing negative and only 5 confirming positive, according to data presented Jan. 29 during a Centers for Disease Control and Prevention (CDC) briefing. 

The remaining samples are in transit or are being processed at the CDC for testing, Nancy Messonnier, MD, director of the National Center for Immunization and Respiratory Diseases, said during the briefing.

“The genetic sequence for all five viruses detected in the United States to date has been uploaded to the CDC website,” she said. “We are working quickly through the process to get the CDC-developed test into the hands of public health partners in the U.S. and internationally.”

Dr. Messonnier reported that the CDC is expanding screening efforts to U.S. ports of entry that house CDC quarantine stations. Also, in collaboration with U.S. Customs and Border Protection, the agency is expanding distribution of travel health education materials to all travelers from China.

“The good news here is that, despite an aggressive public health investigation to find new cases [of 2019-nCoV], we have not,” she said. “The situation in China is concerning, however, we are looking hard here in the U.S. We will continue to be proactive. I still expect that we will find additional cases.”

In another development, the federal government facilitated the return of a plane full of U.S. citizens living in Wuhan, China, to March Air Reserve Force Base in Riverside County, Calif. “We have taken every precaution to ensure their safety while also continuing to protect the health of our nation and the people around them,” Dr. Messonnier said.

All 195 passengers have been screened, monitored, and evaluated by medical personnel “every step of the way,” including before takeoff, during the flight, during a refueling stop in Alaska, and again upon landing at March Air Reserve Force Base on Jan. 28. “All 195 patients are without the symptoms of the novel coronavirus, and all have been assigned living quarters at the Air Force base,” Dr. Messonnier said.

The CDC has launched a second stage of further screening and information gathering from the passengers, who will be offered testing as part of a thorough risk assessment.

“I understand that many people in the U.S. are worried about this virus and whether it will affect them,” Dr. Messonnier said. “Outbreaks like this are always concerning, particularly when a new virus is emerging. But we are well prepared and working closely with federal, state, and local partners to protect our communities and others nationwide from this public health threat. At this time, we continue to believe that the immediate health risk from this new virus to the general American public is low.”

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HHS: Coronavirus risk low in U.S., vaccine development underway

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U.S. public health officials attempted to stymie concerns about the coronavirus during a press conference on Tuesday, emphasizing that most Americans are not in danger of contracting the illness and urging citizens not to take extreme measures in response to the low-risk virus.

“Right now, there is no spread of this virus in our communities here at home,” Centers for Disease Control and Prevention director Robert Redfield, MD, said during the Jan. 28 press conference. “This is why our current assessment is that the immediate health risk of this new virus to the general public is low in our nation. The coming days and weeks are likely to bring more confirmed cases here and around the world, including the possibility of some person-to-person spreading, but our goal of the ongoing U.S. public health response is to contain this outbreak and prevent sustained spread of the virus in our country.”

During the press conference, Department Health & Human Services Secretary Alex M. Azar II, reiterated there have been only five confirmed U.S. cases of the coronavirus thus far and all were associated with travel to Wuhan, China, where the virus first appeared. The number of confirmed cases in China, meanwhile, has risen to more than 4,500 with about 100 associated deaths.

U.S. health providers should be on the lookout for any patient who has traveled to China recently, particularly to Hubei province, and they should pay close attention to any relevant symptoms, Secretary Azar said during the press conference.

He defended the decision not to declare a public health emergency at this time, stressing that such a move is based on standards and requirements not yet met by the coronavirus.

“It’s important to remember where we are right now; we have five cases in the United States, each of those individuals with direct contact to Wuhan and no person-to-person transmission in the United States,” Secretary Azar said. “I won’t hesitate at all to invoke any authorities that I need to ensure that we’re taking all the steps to protect the American people, but I’ll do it when it’s appropriate under the standards that we have and the authorities that I need.”

In the meantime, a number of efforts are underway by U.S. agencies to assess the nation’s emergency preparedness stockpile, to assist American families in China with evacuation, and to pursue research into diagnostics and a potential vaccine for the virus, Secretary Azar said.

HHS.gov
HHS Secretary Alex Azar (left), NIAID Director Dr. Anthony Fauci, CDC Director Dr. Robert Redfield, and NCIRD Director Dr. Nancy Messonnier.


With regard to countermeasures, the CDC has rapidly developed a diagnostic based on the published sequence of the virus, said Anthony Fauci, MD, director for the National Institute of Allergy and Infectious Diseases (NIAID). The National Institutes of Health and the CDC are now working on the development of next-generation diagnostics to better identify the virus in the United States and throughout the world, Dr. Fauci said during the press conference.

Currently, there are no proven therapeutics for the coronavirus infection, Dr. Fauci said. Based on experiences with SARS and MERS, however, researchers are studying certain antiviral drugs that could potentially treat the virus, he said. This includes the antiviral drug remdesivir, which was developed for the treatment of the Ebola virus, and lopinavir/ritonavir (Kaletra), a combination therapy commonly used to treat HIV. In addition, monoclonal antibodies developed during the SARS outbreak are also being studied.

“Given the somewhat close homology between SARS and the new novel coronavirus, there could be some cross reactivity there that could be utilized,” he said.

Most importantly, he said, vaccine development is underway. Since China isolated the virus and published its sequence, U.S. researchers have already analyzed the components and determined an immunogen to be used in a vaccine, Dr. Fauci said. He anticipates moving to a Phase 1 trial within the next 3 months. The trial would then move to Phase 2 after another few more months for safety data.

“What we do from that point will be determined by what has happened with the outbreak over those months,” he said. “We are proceeding as if we will have to deploy a vaccine. In other words, we’re looking at the worst scenario that this becomes a bigger outbreak.”

Federal health officials, however, stressed that more data about infected patients in China is needed for research. HHS has repeatedly offered to send a CDC team to China to help with public health efforts, research, and response, but China has so far declined the offer, Secretary Azar added.

In addition, the CDC has updated its travel advisory in response to the illness. The latest travel guidance recommends that travelers avoid all nonessential travel to all parts of China.
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U.S. public health officials attempted to stymie concerns about the coronavirus during a press conference on Tuesday, emphasizing that most Americans are not in danger of contracting the illness and urging citizens not to take extreme measures in response to the low-risk virus.

“Right now, there is no spread of this virus in our communities here at home,” Centers for Disease Control and Prevention director Robert Redfield, MD, said during the Jan. 28 press conference. “This is why our current assessment is that the immediate health risk of this new virus to the general public is low in our nation. The coming days and weeks are likely to bring more confirmed cases here and around the world, including the possibility of some person-to-person spreading, but our goal of the ongoing U.S. public health response is to contain this outbreak and prevent sustained spread of the virus in our country.”

During the press conference, Department Health & Human Services Secretary Alex M. Azar II, reiterated there have been only five confirmed U.S. cases of the coronavirus thus far and all were associated with travel to Wuhan, China, where the virus first appeared. The number of confirmed cases in China, meanwhile, has risen to more than 4,500 with about 100 associated deaths.

U.S. health providers should be on the lookout for any patient who has traveled to China recently, particularly to Hubei province, and they should pay close attention to any relevant symptoms, Secretary Azar said during the press conference.

He defended the decision not to declare a public health emergency at this time, stressing that such a move is based on standards and requirements not yet met by the coronavirus.

“It’s important to remember where we are right now; we have five cases in the United States, each of those individuals with direct contact to Wuhan and no person-to-person transmission in the United States,” Secretary Azar said. “I won’t hesitate at all to invoke any authorities that I need to ensure that we’re taking all the steps to protect the American people, but I’ll do it when it’s appropriate under the standards that we have and the authorities that I need.”

In the meantime, a number of efforts are underway by U.S. agencies to assess the nation’s emergency preparedness stockpile, to assist American families in China with evacuation, and to pursue research into diagnostics and a potential vaccine for the virus, Secretary Azar said.

HHS.gov
HHS Secretary Alex Azar (left), NIAID Director Dr. Anthony Fauci, CDC Director Dr. Robert Redfield, and NCIRD Director Dr. Nancy Messonnier.


With regard to countermeasures, the CDC has rapidly developed a diagnostic based on the published sequence of the virus, said Anthony Fauci, MD, director for the National Institute of Allergy and Infectious Diseases (NIAID). The National Institutes of Health and the CDC are now working on the development of next-generation diagnostics to better identify the virus in the United States and throughout the world, Dr. Fauci said during the press conference.

Currently, there are no proven therapeutics for the coronavirus infection, Dr. Fauci said. Based on experiences with SARS and MERS, however, researchers are studying certain antiviral drugs that could potentially treat the virus, he said. This includes the antiviral drug remdesivir, which was developed for the treatment of the Ebola virus, and lopinavir/ritonavir (Kaletra), a combination therapy commonly used to treat HIV. In addition, monoclonal antibodies developed during the SARS outbreak are also being studied.

“Given the somewhat close homology between SARS and the new novel coronavirus, there could be some cross reactivity there that could be utilized,” he said.

Most importantly, he said, vaccine development is underway. Since China isolated the virus and published its sequence, U.S. researchers have already analyzed the components and determined an immunogen to be used in a vaccine, Dr. Fauci said. He anticipates moving to a Phase 1 trial within the next 3 months. The trial would then move to Phase 2 after another few more months for safety data.

“What we do from that point will be determined by what has happened with the outbreak over those months,” he said. “We are proceeding as if we will have to deploy a vaccine. In other words, we’re looking at the worst scenario that this becomes a bigger outbreak.”

Federal health officials, however, stressed that more data about infected patients in China is needed for research. HHS has repeatedly offered to send a CDC team to China to help with public health efforts, research, and response, but China has so far declined the offer, Secretary Azar added.

In addition, the CDC has updated its travel advisory in response to the illness. The latest travel guidance recommends that travelers avoid all nonessential travel to all parts of China.

U.S. public health officials attempted to stymie concerns about the coronavirus during a press conference on Tuesday, emphasizing that most Americans are not in danger of contracting the illness and urging citizens not to take extreme measures in response to the low-risk virus.

“Right now, there is no spread of this virus in our communities here at home,” Centers for Disease Control and Prevention director Robert Redfield, MD, said during the Jan. 28 press conference. “This is why our current assessment is that the immediate health risk of this new virus to the general public is low in our nation. The coming days and weeks are likely to bring more confirmed cases here and around the world, including the possibility of some person-to-person spreading, but our goal of the ongoing U.S. public health response is to contain this outbreak and prevent sustained spread of the virus in our country.”

During the press conference, Department Health & Human Services Secretary Alex M. Azar II, reiterated there have been only five confirmed U.S. cases of the coronavirus thus far and all were associated with travel to Wuhan, China, where the virus first appeared. The number of confirmed cases in China, meanwhile, has risen to more than 4,500 with about 100 associated deaths.

U.S. health providers should be on the lookout for any patient who has traveled to China recently, particularly to Hubei province, and they should pay close attention to any relevant symptoms, Secretary Azar said during the press conference.

He defended the decision not to declare a public health emergency at this time, stressing that such a move is based on standards and requirements not yet met by the coronavirus.

“It’s important to remember where we are right now; we have five cases in the United States, each of those individuals with direct contact to Wuhan and no person-to-person transmission in the United States,” Secretary Azar said. “I won’t hesitate at all to invoke any authorities that I need to ensure that we’re taking all the steps to protect the American people, but I’ll do it when it’s appropriate under the standards that we have and the authorities that I need.”

In the meantime, a number of efforts are underway by U.S. agencies to assess the nation’s emergency preparedness stockpile, to assist American families in China with evacuation, and to pursue research into diagnostics and a potential vaccine for the virus, Secretary Azar said.

HHS.gov
HHS Secretary Alex Azar (left), NIAID Director Dr. Anthony Fauci, CDC Director Dr. Robert Redfield, and NCIRD Director Dr. Nancy Messonnier.


With regard to countermeasures, the CDC has rapidly developed a diagnostic based on the published sequence of the virus, said Anthony Fauci, MD, director for the National Institute of Allergy and Infectious Diseases (NIAID). The National Institutes of Health and the CDC are now working on the development of next-generation diagnostics to better identify the virus in the United States and throughout the world, Dr. Fauci said during the press conference.

Currently, there are no proven therapeutics for the coronavirus infection, Dr. Fauci said. Based on experiences with SARS and MERS, however, researchers are studying certain antiviral drugs that could potentially treat the virus, he said. This includes the antiviral drug remdesivir, which was developed for the treatment of the Ebola virus, and lopinavir/ritonavir (Kaletra), a combination therapy commonly used to treat HIV. In addition, monoclonal antibodies developed during the SARS outbreak are also being studied.

“Given the somewhat close homology between SARS and the new novel coronavirus, there could be some cross reactivity there that could be utilized,” he said.

Most importantly, he said, vaccine development is underway. Since China isolated the virus and published its sequence, U.S. researchers have already analyzed the components and determined an immunogen to be used in a vaccine, Dr. Fauci said. He anticipates moving to a Phase 1 trial within the next 3 months. The trial would then move to Phase 2 after another few more months for safety data.

“What we do from that point will be determined by what has happened with the outbreak over those months,” he said. “We are proceeding as if we will have to deploy a vaccine. In other words, we’re looking at the worst scenario that this becomes a bigger outbreak.”

Federal health officials, however, stressed that more data about infected patients in China is needed for research. HHS has repeatedly offered to send a CDC team to China to help with public health efforts, research, and response, but China has so far declined the offer, Secretary Azar added.

In addition, the CDC has updated its travel advisory in response to the illness. The latest travel guidance recommends that travelers avoid all nonessential travel to all parts of China.
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