User login
COVID-19 in children, pregnant women: What do we know?
A novel coronavirus, the causative agent of the current pandemic of viral respiratory illness and pneumonia, was first identified in Wuhan, Hubei, China. The disease has been given the name, coronavirus disease 2019 (COVID-19). The virus at last report has spread to more than 100 countries. Much of what we suspect about this virus comes from work on other severe coronavirus respiratory disease outbreaks – Middle East respiratory syndrome (MERS) and severe acute respiratory syndrome (SARS). MERS-CoV was a viral respiratory disease, first reported in Saudi Arabia, that was identified in more than 27 additional countries. The disease was characterized by severe acute respiratory illness, including fever, cough, and shortness of breath. Among 2,499 cases, only two patients tested positive for MERS-CoV in the United States. SARS-CoV also caused a severe viral respiratory illness. SARS was first recognized in Asia in 2003 and was subsequently reported in approximately 25 countries. The last case reported was in 2004.
As of March 13, there are 137,066 cases worldwide of COVID-19 and 1,701 in the United States, according to the John Hopkins University Coronavirus COVID-19 resource center.
What about children?
The remarkable observation is how few seriously ill children have been identified in the face of global spread. Unlike the H1N1 influenza epidemic of 2009, where older adults were relatively spared and children were a major target population, COVID-19 appears to be relatively infrequent in children or too mild to come to diagnosis, to date. Specifically, among China’s first approximately 44,000 cases, less than 2% were identified in children less than 20 years of age, and severe disease was uncommon with no deaths in children less than 10 years of age reported. One child, 13 months of age, with acute respiratory distress syndrome and septic shock was reported in China. According to the Centers for Disease Control and Prevention webcast , children present with fever in about 50% of cases, cough, fatigue, and subsequently some (3%-30%) progress to shortness of breath. Some children and adults have presented with gastrointestinal disease initially. Viral RNA has been detected in respiratory secretions, blood, and stool of affected children; however, the samples were not cultured for virus so whether stool is a potential source for transmission is unclear. In adults, the disease appears to be most severe – with development of pneumonia – in the second week of illness. In both children and adults, the chest x-ray findings are an interstitial pneumonitis, ground glass appearance, and/or patchy infiltrates.
Are some children at greater risk? Are children the source of community transmission? Will children become a greater part of the disease pattern as further cases are identified and further testing is available? We cannot answer many of these questions about COVID-19 in children as yet, but as you are aware, data are accumulating daily, and the Centers for Disease Control and Prevention and the National Institutes of Health are providing regular updates.
A report from China gave us some idea about community transmission and infection risk for children. The Shenzhen CDC identified 391 COVID-19 cases and 1,286 close contacts. Household contacts and those persons traveling with a case of the virus were at highest risk of acquisition. The secondary attack rates within households was 15%; children were as likely to become infected as adults (medRxiv preprint. 2020. doi: 10.1101/2020.03.03.20028423).
What about pregnant women?
The data on pregnant women are even more limited. The concern about COVID-19 during pregnancy comes from our knowledge of adverse outcomes from other respiratory viral infections. For example, respiratory viral infections such as influenza have been associated with increased maternal risk of severe disease, and adverse neonatal outcomes, including low birth weight and preterm birth. The experience with SARS also is concerning for excess adverse maternal and neonatal complications such as spontaneous miscarriage, preterm delivery, intrauterine growth restriction, admission to the ICU, renal failure, and disseminated intravascular coagulopathy all were reported as complications of SARS infection during pregnancy.
Two studies on COVID-19 in pregnancy have been reported to date. In nine pregnant women reported by Chen et al., COVID-19 pneumonia was identified in the third trimester. The women presented with fever, cough, myalgia, sore throat, and/or malaise. Fetal distress was reported in two; all nine infants were born alive. Apgar scores were 8-10 at 1 minute. Five were found to have lymphopenia; three had increases in hepatic enzymes. None of the infants developed severe COVID-19 pneumonia. Amniotic fluid, cord blood, neonatal throat swab, and breast milk samples from six of the nine patients were tested for the novel coronavirus 2019, and all results were negative (Lancet. 2020 Feb 12. doi: 10.1016/S0140-6736[20]30360-3)https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30360-3/fulltext.
In a study by Zhu et al., nine pregnant women with confirmed COVID-19 infection were identified during Jan. 20-Feb. 5, 2020. The onset of clinical symptoms in these women occurred before delivery in four cases, on the day of delivery in two cases, and after delivery in three cases. Of the 10 neonates (one set of twins) many had clinical symptoms, but none were proven to be COVID-19 positive in their pharyngeal swabs. Shortness of breath was observed in six, fever in two, tachycardia in one. GI symptoms such as feeding intolerance, bloating, GI bleed, and vomiting also were observed. Chest radiography showed abnormalities in seven neonates at admission. Thrombocytopenia and/or disseminated intravascular coagulopathy also was reported. Five neonates recovered and were discharged, one died, and four neonates remained in hospital in a stable condition. It is unclear if the illness in these infants was related to COVID-19 (Transl Pediatrics. 2020 Feb. doi: 10.21037/tp.2020.02.06)http://tp.amegroups.com/article/view/35919/28274.
In the limited experience to date, no evidence of virus has been found in the breast milk of women with COVID-19, which is consistent with the SARS experience. Current recommendations are to separate the infant from known COVID-19 infected mothers either in a different room or in the mother’s room using a six foot rule, a barrier curtain of some type, and mask and hand washing prior to any contact between mother and infant. If the mother desires to breastfeed her child, the same precautions – mask and hand washing – should be in place.
What about treatment?
There are no proven effective therapies and supportive care has been the mainstay to date. Clinical trials of remdesivir have been initiated both by Gilead (compassionate use, open label) and by the National Institutes of Health (randomized remdesivirhttps://www.drugs.com/history/remdesivir.html vs. placebo) in adults based on in vitro data suggesting activity again COVID-19. Lopinavir/ritonavir (combination protease inhibitors) also have been administered off label, but no results are available as yet.
Keeping up
I suggest several valuable resources to keep yourself abreast of the rapidly changing COVID-19 story. First the CDC website or your local Department of Health. These are being updated frequently and include advisories on personal protective equipment, clusters of cases in your local community, and current recommendations for mitigation of the epidemic. I have listened to Anthony S. Fauci, MD, director of the National Institute of Allergy and Infectious Diseases, and Robert R. Redfield, MD, the director of the CDC almost daily. I trust their viewpoints and transparency about what is and what is not known, as well as the why and wherefore of their guidance, remembering that each day brings new information and new guidance.
Dr. Pelton is professor of pediatrics and epidemiology at Boston University and public health and senior attending physician at Boston Medical Center. He has no relevant financial disclosures. Email him at [email protected].
A novel coronavirus, the causative agent of the current pandemic of viral respiratory illness and pneumonia, was first identified in Wuhan, Hubei, China. The disease has been given the name, coronavirus disease 2019 (COVID-19). The virus at last report has spread to more than 100 countries. Much of what we suspect about this virus comes from work on other severe coronavirus respiratory disease outbreaks – Middle East respiratory syndrome (MERS) and severe acute respiratory syndrome (SARS). MERS-CoV was a viral respiratory disease, first reported in Saudi Arabia, that was identified in more than 27 additional countries. The disease was characterized by severe acute respiratory illness, including fever, cough, and shortness of breath. Among 2,499 cases, only two patients tested positive for MERS-CoV in the United States. SARS-CoV also caused a severe viral respiratory illness. SARS was first recognized in Asia in 2003 and was subsequently reported in approximately 25 countries. The last case reported was in 2004.
As of March 13, there are 137,066 cases worldwide of COVID-19 and 1,701 in the United States, according to the John Hopkins University Coronavirus COVID-19 resource center.
What about children?
The remarkable observation is how few seriously ill children have been identified in the face of global spread. Unlike the H1N1 influenza epidemic of 2009, where older adults were relatively spared and children were a major target population, COVID-19 appears to be relatively infrequent in children or too mild to come to diagnosis, to date. Specifically, among China’s first approximately 44,000 cases, less than 2% were identified in children less than 20 years of age, and severe disease was uncommon with no deaths in children less than 10 years of age reported. One child, 13 months of age, with acute respiratory distress syndrome and septic shock was reported in China. According to the Centers for Disease Control and Prevention webcast , children present with fever in about 50% of cases, cough, fatigue, and subsequently some (3%-30%) progress to shortness of breath. Some children and adults have presented with gastrointestinal disease initially. Viral RNA has been detected in respiratory secretions, blood, and stool of affected children; however, the samples were not cultured for virus so whether stool is a potential source for transmission is unclear. In adults, the disease appears to be most severe – with development of pneumonia – in the second week of illness. In both children and adults, the chest x-ray findings are an interstitial pneumonitis, ground glass appearance, and/or patchy infiltrates.
Are some children at greater risk? Are children the source of community transmission? Will children become a greater part of the disease pattern as further cases are identified and further testing is available? We cannot answer many of these questions about COVID-19 in children as yet, but as you are aware, data are accumulating daily, and the Centers for Disease Control and Prevention and the National Institutes of Health are providing regular updates.
A report from China gave us some idea about community transmission and infection risk for children. The Shenzhen CDC identified 391 COVID-19 cases and 1,286 close contacts. Household contacts and those persons traveling with a case of the virus were at highest risk of acquisition. The secondary attack rates within households was 15%; children were as likely to become infected as adults (medRxiv preprint. 2020. doi: 10.1101/2020.03.03.20028423).
What about pregnant women?
The data on pregnant women are even more limited. The concern about COVID-19 during pregnancy comes from our knowledge of adverse outcomes from other respiratory viral infections. For example, respiratory viral infections such as influenza have been associated with increased maternal risk of severe disease, and adverse neonatal outcomes, including low birth weight and preterm birth. The experience with SARS also is concerning for excess adverse maternal and neonatal complications such as spontaneous miscarriage, preterm delivery, intrauterine growth restriction, admission to the ICU, renal failure, and disseminated intravascular coagulopathy all were reported as complications of SARS infection during pregnancy.
Two studies on COVID-19 in pregnancy have been reported to date. In nine pregnant women reported by Chen et al., COVID-19 pneumonia was identified in the third trimester. The women presented with fever, cough, myalgia, sore throat, and/or malaise. Fetal distress was reported in two; all nine infants were born alive. Apgar scores were 8-10 at 1 minute. Five were found to have lymphopenia; three had increases in hepatic enzymes. None of the infants developed severe COVID-19 pneumonia. Amniotic fluid, cord blood, neonatal throat swab, and breast milk samples from six of the nine patients were tested for the novel coronavirus 2019, and all results were negative (Lancet. 2020 Feb 12. doi: 10.1016/S0140-6736[20]30360-3)https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30360-3/fulltext.
In a study by Zhu et al., nine pregnant women with confirmed COVID-19 infection were identified during Jan. 20-Feb. 5, 2020. The onset of clinical symptoms in these women occurred before delivery in four cases, on the day of delivery in two cases, and after delivery in three cases. Of the 10 neonates (one set of twins) many had clinical symptoms, but none were proven to be COVID-19 positive in their pharyngeal swabs. Shortness of breath was observed in six, fever in two, tachycardia in one. GI symptoms such as feeding intolerance, bloating, GI bleed, and vomiting also were observed. Chest radiography showed abnormalities in seven neonates at admission. Thrombocytopenia and/or disseminated intravascular coagulopathy also was reported. Five neonates recovered and were discharged, one died, and four neonates remained in hospital in a stable condition. It is unclear if the illness in these infants was related to COVID-19 (Transl Pediatrics. 2020 Feb. doi: 10.21037/tp.2020.02.06)http://tp.amegroups.com/article/view/35919/28274.
In the limited experience to date, no evidence of virus has been found in the breast milk of women with COVID-19, which is consistent with the SARS experience. Current recommendations are to separate the infant from known COVID-19 infected mothers either in a different room or in the mother’s room using a six foot rule, a barrier curtain of some type, and mask and hand washing prior to any contact between mother and infant. If the mother desires to breastfeed her child, the same precautions – mask and hand washing – should be in place.
What about treatment?
There are no proven effective therapies and supportive care has been the mainstay to date. Clinical trials of remdesivir have been initiated both by Gilead (compassionate use, open label) and by the National Institutes of Health (randomized remdesivirhttps://www.drugs.com/history/remdesivir.html vs. placebo) in adults based on in vitro data suggesting activity again COVID-19. Lopinavir/ritonavir (combination protease inhibitors) also have been administered off label, but no results are available as yet.
Keeping up
I suggest several valuable resources to keep yourself abreast of the rapidly changing COVID-19 story. First the CDC website or your local Department of Health. These are being updated frequently and include advisories on personal protective equipment, clusters of cases in your local community, and current recommendations for mitigation of the epidemic. I have listened to Anthony S. Fauci, MD, director of the National Institute of Allergy and Infectious Diseases, and Robert R. Redfield, MD, the director of the CDC almost daily. I trust their viewpoints and transparency about what is and what is not known, as well as the why and wherefore of their guidance, remembering that each day brings new information and new guidance.
Dr. Pelton is professor of pediatrics and epidemiology at Boston University and public health and senior attending physician at Boston Medical Center. He has no relevant financial disclosures. Email him at [email protected].
A novel coronavirus, the causative agent of the current pandemic of viral respiratory illness and pneumonia, was first identified in Wuhan, Hubei, China. The disease has been given the name, coronavirus disease 2019 (COVID-19). The virus at last report has spread to more than 100 countries. Much of what we suspect about this virus comes from work on other severe coronavirus respiratory disease outbreaks – Middle East respiratory syndrome (MERS) and severe acute respiratory syndrome (SARS). MERS-CoV was a viral respiratory disease, first reported in Saudi Arabia, that was identified in more than 27 additional countries. The disease was characterized by severe acute respiratory illness, including fever, cough, and shortness of breath. Among 2,499 cases, only two patients tested positive for MERS-CoV in the United States. SARS-CoV also caused a severe viral respiratory illness. SARS was first recognized in Asia in 2003 and was subsequently reported in approximately 25 countries. The last case reported was in 2004.
As of March 13, there are 137,066 cases worldwide of COVID-19 and 1,701 in the United States, according to the John Hopkins University Coronavirus COVID-19 resource center.
What about children?
The remarkable observation is how few seriously ill children have been identified in the face of global spread. Unlike the H1N1 influenza epidemic of 2009, where older adults were relatively spared and children were a major target population, COVID-19 appears to be relatively infrequent in children or too mild to come to diagnosis, to date. Specifically, among China’s first approximately 44,000 cases, less than 2% were identified in children less than 20 years of age, and severe disease was uncommon with no deaths in children less than 10 years of age reported. One child, 13 months of age, with acute respiratory distress syndrome and septic shock was reported in China. According to the Centers for Disease Control and Prevention webcast , children present with fever in about 50% of cases, cough, fatigue, and subsequently some (3%-30%) progress to shortness of breath. Some children and adults have presented with gastrointestinal disease initially. Viral RNA has been detected in respiratory secretions, blood, and stool of affected children; however, the samples were not cultured for virus so whether stool is a potential source for transmission is unclear. In adults, the disease appears to be most severe – with development of pneumonia – in the second week of illness. In both children and adults, the chest x-ray findings are an interstitial pneumonitis, ground glass appearance, and/or patchy infiltrates.
Are some children at greater risk? Are children the source of community transmission? Will children become a greater part of the disease pattern as further cases are identified and further testing is available? We cannot answer many of these questions about COVID-19 in children as yet, but as you are aware, data are accumulating daily, and the Centers for Disease Control and Prevention and the National Institutes of Health are providing regular updates.
A report from China gave us some idea about community transmission and infection risk for children. The Shenzhen CDC identified 391 COVID-19 cases and 1,286 close contacts. Household contacts and those persons traveling with a case of the virus were at highest risk of acquisition. The secondary attack rates within households was 15%; children were as likely to become infected as adults (medRxiv preprint. 2020. doi: 10.1101/2020.03.03.20028423).
What about pregnant women?
The data on pregnant women are even more limited. The concern about COVID-19 during pregnancy comes from our knowledge of adverse outcomes from other respiratory viral infections. For example, respiratory viral infections such as influenza have been associated with increased maternal risk of severe disease, and adverse neonatal outcomes, including low birth weight and preterm birth. The experience with SARS also is concerning for excess adverse maternal and neonatal complications such as spontaneous miscarriage, preterm delivery, intrauterine growth restriction, admission to the ICU, renal failure, and disseminated intravascular coagulopathy all were reported as complications of SARS infection during pregnancy.
Two studies on COVID-19 in pregnancy have been reported to date. In nine pregnant women reported by Chen et al., COVID-19 pneumonia was identified in the third trimester. The women presented with fever, cough, myalgia, sore throat, and/or malaise. Fetal distress was reported in two; all nine infants were born alive. Apgar scores were 8-10 at 1 minute. Five were found to have lymphopenia; three had increases in hepatic enzymes. None of the infants developed severe COVID-19 pneumonia. Amniotic fluid, cord blood, neonatal throat swab, and breast milk samples from six of the nine patients were tested for the novel coronavirus 2019, and all results were negative (Lancet. 2020 Feb 12. doi: 10.1016/S0140-6736[20]30360-3)https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30360-3/fulltext.
In a study by Zhu et al., nine pregnant women with confirmed COVID-19 infection were identified during Jan. 20-Feb. 5, 2020. The onset of clinical symptoms in these women occurred before delivery in four cases, on the day of delivery in two cases, and after delivery in three cases. Of the 10 neonates (one set of twins) many had clinical symptoms, but none were proven to be COVID-19 positive in their pharyngeal swabs. Shortness of breath was observed in six, fever in two, tachycardia in one. GI symptoms such as feeding intolerance, bloating, GI bleed, and vomiting also were observed. Chest radiography showed abnormalities in seven neonates at admission. Thrombocytopenia and/or disseminated intravascular coagulopathy also was reported. Five neonates recovered and were discharged, one died, and four neonates remained in hospital in a stable condition. It is unclear if the illness in these infants was related to COVID-19 (Transl Pediatrics. 2020 Feb. doi: 10.21037/tp.2020.02.06)http://tp.amegroups.com/article/view/35919/28274.
In the limited experience to date, no evidence of virus has been found in the breast milk of women with COVID-19, which is consistent with the SARS experience. Current recommendations are to separate the infant from known COVID-19 infected mothers either in a different room or in the mother’s room using a six foot rule, a barrier curtain of some type, and mask and hand washing prior to any contact between mother and infant. If the mother desires to breastfeed her child, the same precautions – mask and hand washing – should be in place.
What about treatment?
There are no proven effective therapies and supportive care has been the mainstay to date. Clinical trials of remdesivir have been initiated both by Gilead (compassionate use, open label) and by the National Institutes of Health (randomized remdesivirhttps://www.drugs.com/history/remdesivir.html vs. placebo) in adults based on in vitro data suggesting activity again COVID-19. Lopinavir/ritonavir (combination protease inhibitors) also have been administered off label, but no results are available as yet.
Keeping up
I suggest several valuable resources to keep yourself abreast of the rapidly changing COVID-19 story. First the CDC website or your local Department of Health. These are being updated frequently and include advisories on personal protective equipment, clusters of cases in your local community, and current recommendations for mitigation of the epidemic. I have listened to Anthony S. Fauci, MD, director of the National Institute of Allergy and Infectious Diseases, and Robert R. Redfield, MD, the director of the CDC almost daily. I trust their viewpoints and transparency about what is and what is not known, as well as the why and wherefore of their guidance, remembering that each day brings new information and new guidance.
Dr. Pelton is professor of pediatrics and epidemiology at Boston University and public health and senior attending physician at Boston Medical Center. He has no relevant financial disclosures. Email him at [email protected].
Detection of COVID-19 in children in early January 2020 in Wuhan, China
Clinical question: What were the clinical characteristics of children in Wuhan, China hospitalized with SARS-CoV-2?
Background: The coronavirus disease 2019 (COVID-19) was recently described by researchers in Wuhan, China.1 However, there has been limited discussion on how the disease has affected children. Based on the Chinese Center for Disease Control and Prevention report, Wu et al. found that 1% of the affected population was less than 10 years, and another 1% of the affected population was 10-19 years.2 However, little information regarding hospitalizations of children with viral infections was previously reported.
Study design: A retrospective analysis of hospitalized children.
Setting: Three sites of a multisite urban teaching hospital in central Wuhan, China.
Synopsis: Over an 8-day period, hospitalized pediatric patients were retrospectively enrolled into this study. The authors defined pediatric patients as those aged 16 years or younger. The patients had one throat swab specimen collected on admission. Throat swab specimens were tested for viral etiologies. In response to the COVID-19 outbreak, the throat samples were retrospectively tested for SARS-CoV-2. If two independent experiments and a clinically verified diagnostic test confirmed the SARS-CoV-2, the cases were confirmed as COVID-19 cases. During the 8-day period, 366 hospitalized pediatric patients were included in the study. Of the 366 patients, 6 tested positive for SARS-CoV-2, while 23 tested positive for influenza A and 20 tested positive for influenza B. The median age of the six patients was 3 years (range, 1-7 years), and all were previously healthy. All six pediatric patients with COVID-19 had high fevers (greater than 39°C), cough, and lymphopenia. Four of the six affected patients had vomiting and leukopenia, while three of the six patients had neutropenia. Four of the six affected patients had pneumonia, as diagnosed on CT scans. Of the six patients, one patient was admitted to the ICU and received intravenous immunoglobulin. The patient admitted to ICU underwent a CT scan which showed “patchy ground-glass opacities in both lungs,” while three of the five children requiring non-ICU hospitalization had chest radiographs showing “patchy shadows in both lungs.” The median length of stay in the hospital was 7.5 days (range, 5-13 days).
Bottom line: COVID-19 causes moderate to severe respiratory illness in pediatric patients with SARS-CoV-2, possibly leading to critical illness. During this time period of the Wuhan COVID-19 outbreak, pediatric patients were more likely to be hospitalized with influenza A or B, than they were with SARS-CoV-2.
Citation: Liu W et al. Detection of Covid-19 in Children in Early January 2020 in Wuhan, China. N Engl J Med. 2020 Mar 12. doi: 10.1056/NEJMc2003717.
Dr. Kumar is clinical assistant professor of pediatrics at Case Western Reserve University, Cleveland, and a pediatric hospitalist at Cleveland Clinic Children’s. She is the pediatric editor of the Hospitalist.
References
1. Zhu N et al. A novel coronavirus from patients with pneumonia in China, 2019. N Engl J Med. 2020;382:727-33.
2. Wu Z, McGoogan JM. Characteristics of and important lessons from the coronavirus disease 2019 (COVID-19) outbreak in China: Summary of a report of 72,314 cases from the Chinese Center for Disease Control and Prevention. JAMA. 2020 Feb 24 (Epub ahead of print).
From the Hospitalist editors: The pediatrics “In the Literature” series generally focuses on original articles. However, given the urgency to learn more about SARS-CoV-2/COVID-19 pandemic and the limited literature about hospitalized pediatric patients with the disease, the editors of the Hospitalist thought it was appropriate to share an article reviewing this letter that was recently published in the New England Journal of Medicine.
Clinical question: What were the clinical characteristics of children in Wuhan, China hospitalized with SARS-CoV-2?
Background: The coronavirus disease 2019 (COVID-19) was recently described by researchers in Wuhan, China.1 However, there has been limited discussion on how the disease has affected children. Based on the Chinese Center for Disease Control and Prevention report, Wu et al. found that 1% of the affected population was less than 10 years, and another 1% of the affected population was 10-19 years.2 However, little information regarding hospitalizations of children with viral infections was previously reported.
Study design: A retrospective analysis of hospitalized children.
Setting: Three sites of a multisite urban teaching hospital in central Wuhan, China.
Synopsis: Over an 8-day period, hospitalized pediatric patients were retrospectively enrolled into this study. The authors defined pediatric patients as those aged 16 years or younger. The patients had one throat swab specimen collected on admission. Throat swab specimens were tested for viral etiologies. In response to the COVID-19 outbreak, the throat samples were retrospectively tested for SARS-CoV-2. If two independent experiments and a clinically verified diagnostic test confirmed the SARS-CoV-2, the cases were confirmed as COVID-19 cases. During the 8-day period, 366 hospitalized pediatric patients were included in the study. Of the 366 patients, 6 tested positive for SARS-CoV-2, while 23 tested positive for influenza A and 20 tested positive for influenza B. The median age of the six patients was 3 years (range, 1-7 years), and all were previously healthy. All six pediatric patients with COVID-19 had high fevers (greater than 39°C), cough, and lymphopenia. Four of the six affected patients had vomiting and leukopenia, while three of the six patients had neutropenia. Four of the six affected patients had pneumonia, as diagnosed on CT scans. Of the six patients, one patient was admitted to the ICU and received intravenous immunoglobulin. The patient admitted to ICU underwent a CT scan which showed “patchy ground-glass opacities in both lungs,” while three of the five children requiring non-ICU hospitalization had chest radiographs showing “patchy shadows in both lungs.” The median length of stay in the hospital was 7.5 days (range, 5-13 days).
Bottom line: COVID-19 causes moderate to severe respiratory illness in pediatric patients with SARS-CoV-2, possibly leading to critical illness. During this time period of the Wuhan COVID-19 outbreak, pediatric patients were more likely to be hospitalized with influenza A or B, than they were with SARS-CoV-2.
Citation: Liu W et al. Detection of Covid-19 in Children in Early January 2020 in Wuhan, China. N Engl J Med. 2020 Mar 12. doi: 10.1056/NEJMc2003717.
Dr. Kumar is clinical assistant professor of pediatrics at Case Western Reserve University, Cleveland, and a pediatric hospitalist at Cleveland Clinic Children’s. She is the pediatric editor of the Hospitalist.
References
1. Zhu N et al. A novel coronavirus from patients with pneumonia in China, 2019. N Engl J Med. 2020;382:727-33.
2. Wu Z, McGoogan JM. Characteristics of and important lessons from the coronavirus disease 2019 (COVID-19) outbreak in China: Summary of a report of 72,314 cases from the Chinese Center for Disease Control and Prevention. JAMA. 2020 Feb 24 (Epub ahead of print).
From the Hospitalist editors: The pediatrics “In the Literature” series generally focuses on original articles. However, given the urgency to learn more about SARS-CoV-2/COVID-19 pandemic and the limited literature about hospitalized pediatric patients with the disease, the editors of the Hospitalist thought it was appropriate to share an article reviewing this letter that was recently published in the New England Journal of Medicine.
Clinical question: What were the clinical characteristics of children in Wuhan, China hospitalized with SARS-CoV-2?
Background: The coronavirus disease 2019 (COVID-19) was recently described by researchers in Wuhan, China.1 However, there has been limited discussion on how the disease has affected children. Based on the Chinese Center for Disease Control and Prevention report, Wu et al. found that 1% of the affected population was less than 10 years, and another 1% of the affected population was 10-19 years.2 However, little information regarding hospitalizations of children with viral infections was previously reported.
Study design: A retrospective analysis of hospitalized children.
Setting: Three sites of a multisite urban teaching hospital in central Wuhan, China.
Synopsis: Over an 8-day period, hospitalized pediatric patients were retrospectively enrolled into this study. The authors defined pediatric patients as those aged 16 years or younger. The patients had one throat swab specimen collected on admission. Throat swab specimens were tested for viral etiologies. In response to the COVID-19 outbreak, the throat samples were retrospectively tested for SARS-CoV-2. If two independent experiments and a clinically verified diagnostic test confirmed the SARS-CoV-2, the cases were confirmed as COVID-19 cases. During the 8-day period, 366 hospitalized pediatric patients were included in the study. Of the 366 patients, 6 tested positive for SARS-CoV-2, while 23 tested positive for influenza A and 20 tested positive for influenza B. The median age of the six patients was 3 years (range, 1-7 years), and all were previously healthy. All six pediatric patients with COVID-19 had high fevers (greater than 39°C), cough, and lymphopenia. Four of the six affected patients had vomiting and leukopenia, while three of the six patients had neutropenia. Four of the six affected patients had pneumonia, as diagnosed on CT scans. Of the six patients, one patient was admitted to the ICU and received intravenous immunoglobulin. The patient admitted to ICU underwent a CT scan which showed “patchy ground-glass opacities in both lungs,” while three of the five children requiring non-ICU hospitalization had chest radiographs showing “patchy shadows in both lungs.” The median length of stay in the hospital was 7.5 days (range, 5-13 days).
Bottom line: COVID-19 causes moderate to severe respiratory illness in pediatric patients with SARS-CoV-2, possibly leading to critical illness. During this time period of the Wuhan COVID-19 outbreak, pediatric patients were more likely to be hospitalized with influenza A or B, than they were with SARS-CoV-2.
Citation: Liu W et al. Detection of Covid-19 in Children in Early January 2020 in Wuhan, China. N Engl J Med. 2020 Mar 12. doi: 10.1056/NEJMc2003717.
Dr. Kumar is clinical assistant professor of pediatrics at Case Western Reserve University, Cleveland, and a pediatric hospitalist at Cleveland Clinic Children’s. She is the pediatric editor of the Hospitalist.
References
1. Zhu N et al. A novel coronavirus from patients with pneumonia in China, 2019. N Engl J Med. 2020;382:727-33.
2. Wu Z, McGoogan JM. Characteristics of and important lessons from the coronavirus disease 2019 (COVID-19) outbreak in China: Summary of a report of 72,314 cases from the Chinese Center for Disease Control and Prevention. JAMA. 2020 Feb 24 (Epub ahead of print).
From the Hospitalist editors: The pediatrics “In the Literature” series generally focuses on original articles. However, given the urgency to learn more about SARS-CoV-2/COVID-19 pandemic and the limited literature about hospitalized pediatric patients with the disease, the editors of the Hospitalist thought it was appropriate to share an article reviewing this letter that was recently published in the New England Journal of Medicine.
Flattening the curve: Viral graphic shows COVID-19 containment needs
Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center.
The “Flattening the Curve” graphic, which has, to not use the term lightly, gone viral on social media, visually explains the best currently available strategy to stop the COVID-19 spread, experts told Medscape Medical News.
The height of the curve is the number of potential cases in the United States; along the horizontal X axis, or the breadth, is the amount of time. The line across the middle represents the point at which too many cases in too short a time overwhelm the healthcare system.
Jeanne Marrazzo, MD, MPH, director of the Division of Infectious Diseases at the University of Alabama at Birmingham’s School of Medicine explained.
“Not only are you spreading out the new cases but the rate at which people recover,” she told Medscape Medical News. “You have time to get people out of the hospital so you can get new people in and clear out those beds.”
The strategy, with its own Twitter hashtag, #Flattenthecurve, “is about all we have,” without a vaccine, Marrazzo said.
Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said avoiding spikes in cases could mean fewer deaths.
“If you look at the curves of outbreaks, you know, they go big peaks, and then they come down. What we need to do is flatten that down,” Fauci said March 10 in a White House briefing. “You do that by trying to interfere with the natural flow of the outbreak.”
Wuhan, China, at the epicenter of the pandemic, “had an explosive curve” and quickly got overwhelmed without early containment measures, Marrazzo noted. “If you look at Italy right now, it’s clearly in the same situation.”
The Race Is On to Interrupt the Spread
The race is on in the US to interrupt the transmission of the virus and slow the spread, meaning containment measures have increasingly higher and wider stakes.
Closing down Broadway shows and some theme parks and massive sporting events; the escalating numbers of people working from home; and businesses cutting hours or closing all demonstrate the level of US confidence that “social distancing” will work, Marrazzo said.
“We’re clearly ready to disrupt the economy and social infrastructure,” she said.
That appears to have made a difference in Wuhan, Marrazzo said, as the new infections are coming down.
The question, she said, is “we’re not China – so are Americans really going to take to this? Americans greatly value their liberty and there’s some skepticism about public health and its directives. People have never seen a pandemic like this before.”
Dena Grayson, MD, PhD, a Florida-based expert in Ebola and other pandemic threats, told Medscape Medical News that EvergreenHealth in Kirkland, Washington, is a good example of what it means when a virus overwhelms healthcare operations.
The New York Times reported that supplies were so strained at the facility that staff were using sanitary napkins to pad protective helmets.
As of March 11, 65 people who had come into the hospital have tested positive for the virus, and 15 of them had died.
Grayson points out that the COVID-19 cases come on top of a severe flu season and the usual cases hospitals see, so the bar on the graphic is even lower than it usually would be.
“We have a relatively limited capacity with ICU beds to begin with,” she said.
So far, closures, postponements, and cancellations are woefully inadequate, Grayson said.
“We can’t stop this virus. We can hope to contain it and slow down the rate of infection,” she said.
“We need to right now shut down all the schools, preschools, and universities,” Grayson said. “We need to look at shutting down public transportation. We need people to stay home – and not for a day but for a couple of weeks.”
The graphic was developed by visual-data journalist Rosamund Pearce, based on a graphic that had appeared in a Centers for Disease Control and Prevention (CDC) article titled “Community Mitigation Guidelines to Prevent Pandemic Influenza,” the Times reports.
Marrazzo and Grayson have disclosed no relevant financial relationships.
This story first appeared on Medscape.com .
Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center.
The “Flattening the Curve” graphic, which has, to not use the term lightly, gone viral on social media, visually explains the best currently available strategy to stop the COVID-19 spread, experts told Medscape Medical News.
The height of the curve is the number of potential cases in the United States; along the horizontal X axis, or the breadth, is the amount of time. The line across the middle represents the point at which too many cases in too short a time overwhelm the healthcare system.
Jeanne Marrazzo, MD, MPH, director of the Division of Infectious Diseases at the University of Alabama at Birmingham’s School of Medicine explained.
“Not only are you spreading out the new cases but the rate at which people recover,” she told Medscape Medical News. “You have time to get people out of the hospital so you can get new people in and clear out those beds.”
The strategy, with its own Twitter hashtag, #Flattenthecurve, “is about all we have,” without a vaccine, Marrazzo said.
Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said avoiding spikes in cases could mean fewer deaths.
“If you look at the curves of outbreaks, you know, they go big peaks, and then they come down. What we need to do is flatten that down,” Fauci said March 10 in a White House briefing. “You do that by trying to interfere with the natural flow of the outbreak.”
Wuhan, China, at the epicenter of the pandemic, “had an explosive curve” and quickly got overwhelmed without early containment measures, Marrazzo noted. “If you look at Italy right now, it’s clearly in the same situation.”
The Race Is On to Interrupt the Spread
The race is on in the US to interrupt the transmission of the virus and slow the spread, meaning containment measures have increasingly higher and wider stakes.
Closing down Broadway shows and some theme parks and massive sporting events; the escalating numbers of people working from home; and businesses cutting hours or closing all demonstrate the level of US confidence that “social distancing” will work, Marrazzo said.
“We’re clearly ready to disrupt the economy and social infrastructure,” she said.
That appears to have made a difference in Wuhan, Marrazzo said, as the new infections are coming down.
The question, she said, is “we’re not China – so are Americans really going to take to this? Americans greatly value their liberty and there’s some skepticism about public health and its directives. People have never seen a pandemic like this before.”
Dena Grayson, MD, PhD, a Florida-based expert in Ebola and other pandemic threats, told Medscape Medical News that EvergreenHealth in Kirkland, Washington, is a good example of what it means when a virus overwhelms healthcare operations.
The New York Times reported that supplies were so strained at the facility that staff were using sanitary napkins to pad protective helmets.
As of March 11, 65 people who had come into the hospital have tested positive for the virus, and 15 of them had died.
Grayson points out that the COVID-19 cases come on top of a severe flu season and the usual cases hospitals see, so the bar on the graphic is even lower than it usually would be.
“We have a relatively limited capacity with ICU beds to begin with,” she said.
So far, closures, postponements, and cancellations are woefully inadequate, Grayson said.
“We can’t stop this virus. We can hope to contain it and slow down the rate of infection,” she said.
“We need to right now shut down all the schools, preschools, and universities,” Grayson said. “We need to look at shutting down public transportation. We need people to stay home – and not for a day but for a couple of weeks.”
The graphic was developed by visual-data journalist Rosamund Pearce, based on a graphic that had appeared in a Centers for Disease Control and Prevention (CDC) article titled “Community Mitigation Guidelines to Prevent Pandemic Influenza,” the Times reports.
Marrazzo and Grayson have disclosed no relevant financial relationships.
This story first appeared on Medscape.com .
Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center.
The “Flattening the Curve” graphic, which has, to not use the term lightly, gone viral on social media, visually explains the best currently available strategy to stop the COVID-19 spread, experts told Medscape Medical News.
The height of the curve is the number of potential cases in the United States; along the horizontal X axis, or the breadth, is the amount of time. The line across the middle represents the point at which too many cases in too short a time overwhelm the healthcare system.
Jeanne Marrazzo, MD, MPH, director of the Division of Infectious Diseases at the University of Alabama at Birmingham’s School of Medicine explained.
“Not only are you spreading out the new cases but the rate at which people recover,” she told Medscape Medical News. “You have time to get people out of the hospital so you can get new people in and clear out those beds.”
The strategy, with its own Twitter hashtag, #Flattenthecurve, “is about all we have,” without a vaccine, Marrazzo said.
Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, said avoiding spikes in cases could mean fewer deaths.
“If you look at the curves of outbreaks, you know, they go big peaks, and then they come down. What we need to do is flatten that down,” Fauci said March 10 in a White House briefing. “You do that by trying to interfere with the natural flow of the outbreak.”
Wuhan, China, at the epicenter of the pandemic, “had an explosive curve” and quickly got overwhelmed without early containment measures, Marrazzo noted. “If you look at Italy right now, it’s clearly in the same situation.”
The Race Is On to Interrupt the Spread
The race is on in the US to interrupt the transmission of the virus and slow the spread, meaning containment measures have increasingly higher and wider stakes.
Closing down Broadway shows and some theme parks and massive sporting events; the escalating numbers of people working from home; and businesses cutting hours or closing all demonstrate the level of US confidence that “social distancing” will work, Marrazzo said.
“We’re clearly ready to disrupt the economy and social infrastructure,” she said.
That appears to have made a difference in Wuhan, Marrazzo said, as the new infections are coming down.
The question, she said, is “we’re not China – so are Americans really going to take to this? Americans greatly value their liberty and there’s some skepticism about public health and its directives. People have never seen a pandemic like this before.”
Dena Grayson, MD, PhD, a Florida-based expert in Ebola and other pandemic threats, told Medscape Medical News that EvergreenHealth in Kirkland, Washington, is a good example of what it means when a virus overwhelms healthcare operations.
The New York Times reported that supplies were so strained at the facility that staff were using sanitary napkins to pad protective helmets.
As of March 11, 65 people who had come into the hospital have tested positive for the virus, and 15 of them had died.
Grayson points out that the COVID-19 cases come on top of a severe flu season and the usual cases hospitals see, so the bar on the graphic is even lower than it usually would be.
“We have a relatively limited capacity with ICU beds to begin with,” she said.
So far, closures, postponements, and cancellations are woefully inadequate, Grayson said.
“We can’t stop this virus. We can hope to contain it and slow down the rate of infection,” she said.
“We need to right now shut down all the schools, preschools, and universities,” Grayson said. “We need to look at shutting down public transportation. We need people to stay home – and not for a day but for a couple of weeks.”
The graphic was developed by visual-data journalist Rosamund Pearce, based on a graphic that had appeared in a Centers for Disease Control and Prevention (CDC) article titled “Community Mitigation Guidelines to Prevent Pandemic Influenza,” the Times reports.
Marrazzo and Grayson have disclosed no relevant financial relationships.
This story first appeared on Medscape.com .
So you have a COVID-19 patient: How do you treat them?
Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center.
Clinicians are working out how to manage patients with or suspected of having COVID-19.
“Over the past couple of weeks, we’ve been preparing for the oncoming onslaught of patients,” said Lillian Wu, MD, of the HealthPoint network in the Seattle area of greater King County and president elect of the Washington Academy of Family Physicians.
Step One: Triage
The first step, Wu says, is careful triage.
When patients call one of the 17 clinics in the HealthPoint system, nurses gauge how sick they are. High fever? Shortness of breath? Do they have a chronic illness, such as diabetes, cardiovascular disease, or a lung condition, that increases risk for infection and complications?
“If a patient has mild symptoms, we ask them to stay home or to check back in 24 hours, or we’ll reach out to them. For moderate symptoms, we ask them to come in, and [we] clearly mark on the schedule that it is a respiratory patient, who will be sent to a separate area. If the patient is severe, we don’t even see them and send them directly to the hospital to the ER,” Wu told Medscape Medical News.
These categories parallel the World Health Organization’s designations of uncomplicated illness, mild pneumonia, severe pneumonia, acute respiratory distress syndrome, sepsis, and septic shock. The Centers for Disease Control and Prevention (CDC) advises case by case regarding decisions as to outpatient or inpatient assignment.
“Patients who pass the initial phone triage are given masks, separated, and sent to different parts of the clinic or are required to wait in their cars until it’s time to be seen,” Wu said.
Step 2: Hospital Arrival
Once at the hospital, the CDC’s interim guidance kicks in.
“Any patient with fever, cough, and shortness of breath presenting with a history of travel to countries with high ongoing transmission or a credible history of exposure should be promptly evaluated for COVID-19,” said Raghavendra Tirupathi, MD, medical director, Keystone Infectious Diseases/HIV; chair in infection prevention, Summit Health; and clinical assistant professor of medicine, Penn State School of Medicine, Hershey, Pennsylvania.
“We recommend obtaining baseline CBC with differential, basic metabolic panel, liver function tests, and procalcitonin. Clues for COVID-19 include leukopenia, seen in 30% to 45% of patients, and lymphocytopenia, seen in 85% of the patients in the case series from China,” Tirupathi said. He uses a respiratory virus polymerase chain reaction panel to rule out other pathogens.
Wu concurs. “This is the one time we are grateful when someone tests positive for the flu! If flu is negative and other common respiratory infections are negative, then we do a COVID-19 test,” she said.
But test results may be delayed. “At the University of Washington, it takes 8 hours, but commercial labs take up to 4 days,” Wu said. All patients with respiratory symptoms are treated as persons under investigation, for whom isolation precautions are required. In addition, for these patients, use of personal protective equipment by caregivers is required.
For suspected pneumonia, the American College of Radiography recommends chest CT to identify peripheral basal ground-glass opacities characteristic of COVID-19.
However, diagnosis should be based on detection of SARS-CoV-2, because chest images for COVID-19 are nonspecific – associated signs can also be seen in H1N1 influenza, SARS, and MERS.
Step 3: Supportive Care
Once a patient is admitted, supportive care entails “maintaining fluid status and nutrition and supporting physiological functions until we heal. It’s treating complications and organ support, whether that means providing supplementary oxygen all the way to ventilator support, and just waiting it out. If a patient progresses to acute respiratory distress syndrome, it becomes tougher,” said David Liebers, MD, chief medical officer and an infectious disease specialist at Ellis Medicine in Schenectady, New York.
Efforts are ramping up to develop therapeutics. Remdesivir, an investigational antiviral drug developed to treat Ebola and Marburg hemorrhagic fevers, shows activity against SARS-CoV-2 in vitro.
Remdesivir has been used in a few patients on a compassionate-use basis outside of a clinical trial setting. “It’s a nucleotide analogue, and like other drugs of that class, it disrupts nucleic acid production. Some data suggest that it might have some efficacy,” Liebers said.
Antibiotics are reserved for patients suspected of having concomitant bacterial or fungal infections. Liebers said clinicians should be alerted to “the big three” signs of secondary infection – fever, elevated white blood cell count, and lactic acidosis. Immunosuppressed patients are at elevated risk for secondary infection.
Step 4: Managing Complications
Patients do die of COVID-19, mostly through an inability to ventilate, even when supported with oxygen, Liebers told Medscape Medical News. (According to Tirupathi, “The studies from China indicate that from 6%-10% of patients needed ventilators.”)
Liebers continued, “Others may develop sepsis or a syndrome of multisystem organ failure with renal and endothelial collapse, making it difficult to maintain blood pressure. Like with so many pathologies, it is a vicious circle in which everything gets overworked. Off-and-on treatments can sometimes break the cycle: supplementary oxygen, giving red blood cells, dialysis. We support those functions while waiting for healing to occur.”
A facility’s airborne-infection isolation rooms may become filled to capacity, but that isn’t critical, Liebers said. “Airborne precautions are standard to contain measles, tuberculosis, chickenpox, and herpes zoster, in which very small particles spread in the air,” he said.
Consensus is growing that SARS-CoV-2 spreads in large droplets, he added. Private rooms and closed doors may suffice.
Step 5: Discharge
Liebers said that as of now, the million-dollar question regards criteria for discharge.
Patients who clinically improve are sent home with instructions to remain in isolation. They may be tested again for virus before or after discharge.
Liebers and Wu pointed to the experience at EvergreenHealth Medical Center, in Kirkland, Washington, as guidance from the trenches. “They’re the ones who are learning firsthand and passing the experience along to everyone else,” Wu said.
“The situation is unprecedented,” said Liebers, who, like many others, has barely slept these past weeks. “We’re swimming in murky water right now.”
The epidemic in the United States is still months from peaking, Wu emphasized. “There is no vaccine, and many cases are subclinical. COVID-19 has to spread through the country before it infects a critical mass of people who will develop immunity. It’s too late to contain.”
Added Liebers, “It’s a constantly changing situation, and we are still being surprised – not that this wasn’t predicted.”
This article first appeared on Medscape.com.
Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center.
Clinicians are working out how to manage patients with or suspected of having COVID-19.
“Over the past couple of weeks, we’ve been preparing for the oncoming onslaught of patients,” said Lillian Wu, MD, of the HealthPoint network in the Seattle area of greater King County and president elect of the Washington Academy of Family Physicians.
Step One: Triage
The first step, Wu says, is careful triage.
When patients call one of the 17 clinics in the HealthPoint system, nurses gauge how sick they are. High fever? Shortness of breath? Do they have a chronic illness, such as diabetes, cardiovascular disease, or a lung condition, that increases risk for infection and complications?
“If a patient has mild symptoms, we ask them to stay home or to check back in 24 hours, or we’ll reach out to them. For moderate symptoms, we ask them to come in, and [we] clearly mark on the schedule that it is a respiratory patient, who will be sent to a separate area. If the patient is severe, we don’t even see them and send them directly to the hospital to the ER,” Wu told Medscape Medical News.
These categories parallel the World Health Organization’s designations of uncomplicated illness, mild pneumonia, severe pneumonia, acute respiratory distress syndrome, sepsis, and septic shock. The Centers for Disease Control and Prevention (CDC) advises case by case regarding decisions as to outpatient or inpatient assignment.
“Patients who pass the initial phone triage are given masks, separated, and sent to different parts of the clinic or are required to wait in their cars until it’s time to be seen,” Wu said.
Step 2: Hospital Arrival
Once at the hospital, the CDC’s interim guidance kicks in.
“Any patient with fever, cough, and shortness of breath presenting with a history of travel to countries with high ongoing transmission or a credible history of exposure should be promptly evaluated for COVID-19,” said Raghavendra Tirupathi, MD, medical director, Keystone Infectious Diseases/HIV; chair in infection prevention, Summit Health; and clinical assistant professor of medicine, Penn State School of Medicine, Hershey, Pennsylvania.
“We recommend obtaining baseline CBC with differential, basic metabolic panel, liver function tests, and procalcitonin. Clues for COVID-19 include leukopenia, seen in 30% to 45% of patients, and lymphocytopenia, seen in 85% of the patients in the case series from China,” Tirupathi said. He uses a respiratory virus polymerase chain reaction panel to rule out other pathogens.
Wu concurs. “This is the one time we are grateful when someone tests positive for the flu! If flu is negative and other common respiratory infections are negative, then we do a COVID-19 test,” she said.
But test results may be delayed. “At the University of Washington, it takes 8 hours, but commercial labs take up to 4 days,” Wu said. All patients with respiratory symptoms are treated as persons under investigation, for whom isolation precautions are required. In addition, for these patients, use of personal protective equipment by caregivers is required.
For suspected pneumonia, the American College of Radiography recommends chest CT to identify peripheral basal ground-glass opacities characteristic of COVID-19.
However, diagnosis should be based on detection of SARS-CoV-2, because chest images for COVID-19 are nonspecific – associated signs can also be seen in H1N1 influenza, SARS, and MERS.
Step 3: Supportive Care
Once a patient is admitted, supportive care entails “maintaining fluid status and nutrition and supporting physiological functions until we heal. It’s treating complications and organ support, whether that means providing supplementary oxygen all the way to ventilator support, and just waiting it out. If a patient progresses to acute respiratory distress syndrome, it becomes tougher,” said David Liebers, MD, chief medical officer and an infectious disease specialist at Ellis Medicine in Schenectady, New York.
Efforts are ramping up to develop therapeutics. Remdesivir, an investigational antiviral drug developed to treat Ebola and Marburg hemorrhagic fevers, shows activity against SARS-CoV-2 in vitro.
Remdesivir has been used in a few patients on a compassionate-use basis outside of a clinical trial setting. “It’s a nucleotide analogue, and like other drugs of that class, it disrupts nucleic acid production. Some data suggest that it might have some efficacy,” Liebers said.
Antibiotics are reserved for patients suspected of having concomitant bacterial or fungal infections. Liebers said clinicians should be alerted to “the big three” signs of secondary infection – fever, elevated white blood cell count, and lactic acidosis. Immunosuppressed patients are at elevated risk for secondary infection.
Step 4: Managing Complications
Patients do die of COVID-19, mostly through an inability to ventilate, even when supported with oxygen, Liebers told Medscape Medical News. (According to Tirupathi, “The studies from China indicate that from 6%-10% of patients needed ventilators.”)
Liebers continued, “Others may develop sepsis or a syndrome of multisystem organ failure with renal and endothelial collapse, making it difficult to maintain blood pressure. Like with so many pathologies, it is a vicious circle in which everything gets overworked. Off-and-on treatments can sometimes break the cycle: supplementary oxygen, giving red blood cells, dialysis. We support those functions while waiting for healing to occur.”
A facility’s airborne-infection isolation rooms may become filled to capacity, but that isn’t critical, Liebers said. “Airborne precautions are standard to contain measles, tuberculosis, chickenpox, and herpes zoster, in which very small particles spread in the air,” he said.
Consensus is growing that SARS-CoV-2 spreads in large droplets, he added. Private rooms and closed doors may suffice.
Step 5: Discharge
Liebers said that as of now, the million-dollar question regards criteria for discharge.
Patients who clinically improve are sent home with instructions to remain in isolation. They may be tested again for virus before or after discharge.
Liebers and Wu pointed to the experience at EvergreenHealth Medical Center, in Kirkland, Washington, as guidance from the trenches. “They’re the ones who are learning firsthand and passing the experience along to everyone else,” Wu said.
“The situation is unprecedented,” said Liebers, who, like many others, has barely slept these past weeks. “We’re swimming in murky water right now.”
The epidemic in the United States is still months from peaking, Wu emphasized. “There is no vaccine, and many cases are subclinical. COVID-19 has to spread through the country before it infects a critical mass of people who will develop immunity. It’s too late to contain.”
Added Liebers, “It’s a constantly changing situation, and we are still being surprised – not that this wasn’t predicted.”
This article first appeared on Medscape.com.
Editor’s note: Find the latest COVID-19 news and guidance in Medscape’s Coronavirus Resource Center.
Clinicians are working out how to manage patients with or suspected of having COVID-19.
“Over the past couple of weeks, we’ve been preparing for the oncoming onslaught of patients,” said Lillian Wu, MD, of the HealthPoint network in the Seattle area of greater King County and president elect of the Washington Academy of Family Physicians.
Step One: Triage
The first step, Wu says, is careful triage.
When patients call one of the 17 clinics in the HealthPoint system, nurses gauge how sick they are. High fever? Shortness of breath? Do they have a chronic illness, such as diabetes, cardiovascular disease, or a lung condition, that increases risk for infection and complications?
“If a patient has mild symptoms, we ask them to stay home or to check back in 24 hours, or we’ll reach out to them. For moderate symptoms, we ask them to come in, and [we] clearly mark on the schedule that it is a respiratory patient, who will be sent to a separate area. If the patient is severe, we don’t even see them and send them directly to the hospital to the ER,” Wu told Medscape Medical News.
These categories parallel the World Health Organization’s designations of uncomplicated illness, mild pneumonia, severe pneumonia, acute respiratory distress syndrome, sepsis, and septic shock. The Centers for Disease Control and Prevention (CDC) advises case by case regarding decisions as to outpatient or inpatient assignment.
“Patients who pass the initial phone triage are given masks, separated, and sent to different parts of the clinic or are required to wait in their cars until it’s time to be seen,” Wu said.
Step 2: Hospital Arrival
Once at the hospital, the CDC’s interim guidance kicks in.
“Any patient with fever, cough, and shortness of breath presenting with a history of travel to countries with high ongoing transmission or a credible history of exposure should be promptly evaluated for COVID-19,” said Raghavendra Tirupathi, MD, medical director, Keystone Infectious Diseases/HIV; chair in infection prevention, Summit Health; and clinical assistant professor of medicine, Penn State School of Medicine, Hershey, Pennsylvania.
“We recommend obtaining baseline CBC with differential, basic metabolic panel, liver function tests, and procalcitonin. Clues for COVID-19 include leukopenia, seen in 30% to 45% of patients, and lymphocytopenia, seen in 85% of the patients in the case series from China,” Tirupathi said. He uses a respiratory virus polymerase chain reaction panel to rule out other pathogens.
Wu concurs. “This is the one time we are grateful when someone tests positive for the flu! If flu is negative and other common respiratory infections are negative, then we do a COVID-19 test,” she said.
But test results may be delayed. “At the University of Washington, it takes 8 hours, but commercial labs take up to 4 days,” Wu said. All patients with respiratory symptoms are treated as persons under investigation, for whom isolation precautions are required. In addition, for these patients, use of personal protective equipment by caregivers is required.
For suspected pneumonia, the American College of Radiography recommends chest CT to identify peripheral basal ground-glass opacities characteristic of COVID-19.
However, diagnosis should be based on detection of SARS-CoV-2, because chest images for COVID-19 are nonspecific – associated signs can also be seen in H1N1 influenza, SARS, and MERS.
Step 3: Supportive Care
Once a patient is admitted, supportive care entails “maintaining fluid status and nutrition and supporting physiological functions until we heal. It’s treating complications and organ support, whether that means providing supplementary oxygen all the way to ventilator support, and just waiting it out. If a patient progresses to acute respiratory distress syndrome, it becomes tougher,” said David Liebers, MD, chief medical officer and an infectious disease specialist at Ellis Medicine in Schenectady, New York.
Efforts are ramping up to develop therapeutics. Remdesivir, an investigational antiviral drug developed to treat Ebola and Marburg hemorrhagic fevers, shows activity against SARS-CoV-2 in vitro.
Remdesivir has been used in a few patients on a compassionate-use basis outside of a clinical trial setting. “It’s a nucleotide analogue, and like other drugs of that class, it disrupts nucleic acid production. Some data suggest that it might have some efficacy,” Liebers said.
Antibiotics are reserved for patients suspected of having concomitant bacterial or fungal infections. Liebers said clinicians should be alerted to “the big three” signs of secondary infection – fever, elevated white blood cell count, and lactic acidosis. Immunosuppressed patients are at elevated risk for secondary infection.
Step 4: Managing Complications
Patients do die of COVID-19, mostly through an inability to ventilate, even when supported with oxygen, Liebers told Medscape Medical News. (According to Tirupathi, “The studies from China indicate that from 6%-10% of patients needed ventilators.”)
Liebers continued, “Others may develop sepsis or a syndrome of multisystem organ failure with renal and endothelial collapse, making it difficult to maintain blood pressure. Like with so many pathologies, it is a vicious circle in which everything gets overworked. Off-and-on treatments can sometimes break the cycle: supplementary oxygen, giving red blood cells, dialysis. We support those functions while waiting for healing to occur.”
A facility’s airborne-infection isolation rooms may become filled to capacity, but that isn’t critical, Liebers said. “Airborne precautions are standard to contain measles, tuberculosis, chickenpox, and herpes zoster, in which very small particles spread in the air,” he said.
Consensus is growing that SARS-CoV-2 spreads in large droplets, he added. Private rooms and closed doors may suffice.
Step 5: Discharge
Liebers said that as of now, the million-dollar question regards criteria for discharge.
Patients who clinically improve are sent home with instructions to remain in isolation. They may be tested again for virus before or after discharge.
Liebers and Wu pointed to the experience at EvergreenHealth Medical Center, in Kirkland, Washington, as guidance from the trenches. “They’re the ones who are learning firsthand and passing the experience along to everyone else,” Wu said.
“The situation is unprecedented,” said Liebers, who, like many others, has barely slept these past weeks. “We’re swimming in murky water right now.”
The epidemic in the United States is still months from peaking, Wu emphasized. “There is no vaccine, and many cases are subclinical. COVID-19 has to spread through the country before it infects a critical mass of people who will develop immunity. It’s too late to contain.”
Added Liebers, “It’s a constantly changing situation, and we are still being surprised – not that this wasn’t predicted.”
This article first appeared on Medscape.com.
President declares national emergency for COVID-19, ramps up testing capability
President Donald Trump has declared a national emergency to allow for additional resources to combat the COVID-19 pandemic and announced increased testing capacity in partnership with private industry.
During a March 13 press conference, the president said the declaration would “open up access to up to $50 billion” for states and territories in combating the spread of the disease.
He also called on all states to “set up emergency operation centers, effective immediately” and for every hospital “to activate its emergency preparedness plan so that they can meet the needs of Americans everywhere.”
Additionally, he said the declaration will confer broad new authority on the Department of Health & Human Services Secretary Alex Azar that will allow him to “immediately waive provisions of applicable laws and regulations to give doctors, all hospitals, and health care providers maximum flexibility to respond to the virus and care for patients.”
Some of the powers he highlighted included the ability to waive laws to enable telehealth; to waive certain federal license requirements to allow doctors licensed in one state to offer services in other states; the ability to waive limits on beds in critical access hospitals; and to waive rules that hinder hospitals from hiring additional physicians.
The president also announced that more testing capacity will be made available within the next week, in partnership with private industry.
“We want to make sure that those who need a test can get a test very safely, quickly, and conveniently, but we don’t want people to take a test if we feel that they shouldn’t be doing it,” he said.
To help make that determination, a website, developed with Google, is expected to be launched the weekend of March 13 to will allow individuals to input their symptoms and risk factors to help determine if they should be tested. If certain criteria are met, the website will provide locations for drive-through testing facilities. Individuals will be tested using a nasal swab and will receive results within 24-36 hours.
The testing is being done in partnership with retailers, including Target and Walmart (who are providing parking lot space for the pop-up testing facilities) and testing companies LabCorp and Quest Diagnostics.
The new test was developed by Roche and just received emergency use authorization from the Food and Drug Administration.
“We therefore expect up to a half-million additional tests will be available early next week,” President Trump said, adding that testing locations will “probably” be announced on Sunday, March 15.
A second application for a new test, submitted by Thermo Fisher, is currently under review at the FDA and is expected to be approved within the next 24 hours, he said. This would add an additional 1.4 million tests in the next week and 5 million within a month, according to the president.
President Donald Trump has declared a national emergency to allow for additional resources to combat the COVID-19 pandemic and announced increased testing capacity in partnership with private industry.
During a March 13 press conference, the president said the declaration would “open up access to up to $50 billion” for states and territories in combating the spread of the disease.
He also called on all states to “set up emergency operation centers, effective immediately” and for every hospital “to activate its emergency preparedness plan so that they can meet the needs of Americans everywhere.”
Additionally, he said the declaration will confer broad new authority on the Department of Health & Human Services Secretary Alex Azar that will allow him to “immediately waive provisions of applicable laws and regulations to give doctors, all hospitals, and health care providers maximum flexibility to respond to the virus and care for patients.”
Some of the powers he highlighted included the ability to waive laws to enable telehealth; to waive certain federal license requirements to allow doctors licensed in one state to offer services in other states; the ability to waive limits on beds in critical access hospitals; and to waive rules that hinder hospitals from hiring additional physicians.
The president also announced that more testing capacity will be made available within the next week, in partnership with private industry.
“We want to make sure that those who need a test can get a test very safely, quickly, and conveniently, but we don’t want people to take a test if we feel that they shouldn’t be doing it,” he said.
To help make that determination, a website, developed with Google, is expected to be launched the weekend of March 13 to will allow individuals to input their symptoms and risk factors to help determine if they should be tested. If certain criteria are met, the website will provide locations for drive-through testing facilities. Individuals will be tested using a nasal swab and will receive results within 24-36 hours.
The testing is being done in partnership with retailers, including Target and Walmart (who are providing parking lot space for the pop-up testing facilities) and testing companies LabCorp and Quest Diagnostics.
The new test was developed by Roche and just received emergency use authorization from the Food and Drug Administration.
“We therefore expect up to a half-million additional tests will be available early next week,” President Trump said, adding that testing locations will “probably” be announced on Sunday, March 15.
A second application for a new test, submitted by Thermo Fisher, is currently under review at the FDA and is expected to be approved within the next 24 hours, he said. This would add an additional 1.4 million tests in the next week and 5 million within a month, according to the president.
President Donald Trump has declared a national emergency to allow for additional resources to combat the COVID-19 pandemic and announced increased testing capacity in partnership with private industry.
During a March 13 press conference, the president said the declaration would “open up access to up to $50 billion” for states and territories in combating the spread of the disease.
He also called on all states to “set up emergency operation centers, effective immediately” and for every hospital “to activate its emergency preparedness plan so that they can meet the needs of Americans everywhere.”
Additionally, he said the declaration will confer broad new authority on the Department of Health & Human Services Secretary Alex Azar that will allow him to “immediately waive provisions of applicable laws and regulations to give doctors, all hospitals, and health care providers maximum flexibility to respond to the virus and care for patients.”
Some of the powers he highlighted included the ability to waive laws to enable telehealth; to waive certain federal license requirements to allow doctors licensed in one state to offer services in other states; the ability to waive limits on beds in critical access hospitals; and to waive rules that hinder hospitals from hiring additional physicians.
The president also announced that more testing capacity will be made available within the next week, in partnership with private industry.
“We want to make sure that those who need a test can get a test very safely, quickly, and conveniently, but we don’t want people to take a test if we feel that they shouldn’t be doing it,” he said.
To help make that determination, a website, developed with Google, is expected to be launched the weekend of March 13 to will allow individuals to input their symptoms and risk factors to help determine if they should be tested. If certain criteria are met, the website will provide locations for drive-through testing facilities. Individuals will be tested using a nasal swab and will receive results within 24-36 hours.
The testing is being done in partnership with retailers, including Target and Walmart (who are providing parking lot space for the pop-up testing facilities) and testing companies LabCorp and Quest Diagnostics.
The new test was developed by Roche and just received emergency use authorization from the Food and Drug Administration.
“We therefore expect up to a half-million additional tests will be available early next week,” President Trump said, adding that testing locations will “probably” be announced on Sunday, March 15.
A second application for a new test, submitted by Thermo Fisher, is currently under review at the FDA and is expected to be approved within the next 24 hours, he said. This would add an additional 1.4 million tests in the next week and 5 million within a month, according to the president.
After weeks of decline, influenza activity increases slightly
The two leading measures of influenza activity – the percentage of respiratory specimens testing positive for influenza and the proportion of visits to health care providers for influenza-like illness (ILI) – had been following a similar downward path since mid-February. But during the week ending March 7, their paths diverged, according to the Centers for Disease Control and Prevention.
The percentage of respiratory specimens testing positive for influenza dropped for the fourth consecutive week, falling from 26.1% to 21.5%, while the proportion of visits to health care providers for ILI increased from 5.1% to 5.2%, the CDC’s influenza division reported.
One possible explanation for that rise: “The largest increases in ILI activity occurred in areas of the country where COVID-19 is most prevalent. More people may be seeking care for respiratory illness than usual at this time,” the influenza division said March 13 in its weekly Fluview report.
This week’s map puts 34 states and Puerto Rico at level 10 on the CDC’s 1-10 scale of ILI activity, one more state than the week before, and 43 jurisdictions in the “high” range of 8-10, compared with 42 the previous week, the CDC said.
Rates of hospitalizations associated with influenza “remain moderate compared to recent seasons, but rates for children 0-4 years and adults 18-49 years are now the highest CDC has on record for these age groups, surpassing rates reported during the 2009 H1N1 pandemic,” the Fluview report said. Rates for children aged 5-17 years “are higher than any recent regular season but remain lower than rates experienced by this age group during the pandemic.”
The number of pediatric deaths this season is now up to 144, equaling the total for all of the 2018-2019 season. This year’s count led the CDC to invoke 2009 again, since it “is higher for the same time period than in every season since reporting began in 2004-2005, except for the 2009 pandemic.”
For the 2019-2020 season so far there have been 36 million flu illnesses, 370,000 hospitalizations, and 22,000 deaths from flu and pneumonia, the CDC estimated.
The two leading measures of influenza activity – the percentage of respiratory specimens testing positive for influenza and the proportion of visits to health care providers for influenza-like illness (ILI) – had been following a similar downward path since mid-February. But during the week ending March 7, their paths diverged, according to the Centers for Disease Control and Prevention.
The percentage of respiratory specimens testing positive for influenza dropped for the fourth consecutive week, falling from 26.1% to 21.5%, while the proportion of visits to health care providers for ILI increased from 5.1% to 5.2%, the CDC’s influenza division reported.
One possible explanation for that rise: “The largest increases in ILI activity occurred in areas of the country where COVID-19 is most prevalent. More people may be seeking care for respiratory illness than usual at this time,” the influenza division said March 13 in its weekly Fluview report.
This week’s map puts 34 states and Puerto Rico at level 10 on the CDC’s 1-10 scale of ILI activity, one more state than the week before, and 43 jurisdictions in the “high” range of 8-10, compared with 42 the previous week, the CDC said.
Rates of hospitalizations associated with influenza “remain moderate compared to recent seasons, but rates for children 0-4 years and adults 18-49 years are now the highest CDC has on record for these age groups, surpassing rates reported during the 2009 H1N1 pandemic,” the Fluview report said. Rates for children aged 5-17 years “are higher than any recent regular season but remain lower than rates experienced by this age group during the pandemic.”
The number of pediatric deaths this season is now up to 144, equaling the total for all of the 2018-2019 season. This year’s count led the CDC to invoke 2009 again, since it “is higher for the same time period than in every season since reporting began in 2004-2005, except for the 2009 pandemic.”
For the 2019-2020 season so far there have been 36 million flu illnesses, 370,000 hospitalizations, and 22,000 deaths from flu and pneumonia, the CDC estimated.
The two leading measures of influenza activity – the percentage of respiratory specimens testing positive for influenza and the proportion of visits to health care providers for influenza-like illness (ILI) – had been following a similar downward path since mid-February. But during the week ending March 7, their paths diverged, according to the Centers for Disease Control and Prevention.
The percentage of respiratory specimens testing positive for influenza dropped for the fourth consecutive week, falling from 26.1% to 21.5%, while the proportion of visits to health care providers for ILI increased from 5.1% to 5.2%, the CDC’s influenza division reported.
One possible explanation for that rise: “The largest increases in ILI activity occurred in areas of the country where COVID-19 is most prevalent. More people may be seeking care for respiratory illness than usual at this time,” the influenza division said March 13 in its weekly Fluview report.
This week’s map puts 34 states and Puerto Rico at level 10 on the CDC’s 1-10 scale of ILI activity, one more state than the week before, and 43 jurisdictions in the “high” range of 8-10, compared with 42 the previous week, the CDC said.
Rates of hospitalizations associated with influenza “remain moderate compared to recent seasons, but rates for children 0-4 years and adults 18-49 years are now the highest CDC has on record for these age groups, surpassing rates reported during the 2009 H1N1 pandemic,” the Fluview report said. Rates for children aged 5-17 years “are higher than any recent regular season but remain lower than rates experienced by this age group during the pandemic.”
The number of pediatric deaths this season is now up to 144, equaling the total for all of the 2018-2019 season. This year’s count led the CDC to invoke 2009 again, since it “is higher for the same time period than in every season since reporting began in 2004-2005, except for the 2009 pandemic.”
For the 2019-2020 season so far there have been 36 million flu illnesses, 370,000 hospitalizations, and 22,000 deaths from flu and pneumonia, the CDC estimated.
Lombardy ICU capacity stressed to breaking point by COVID-19 outbreak
The outbreak of COVID-19 in the Lombardy region of Italy has severely stressed the medical system and the current level of activity may not be sustainable for long, according to Maurizio Cecconi, MD, of the department of anesthesia and intensive care, Humanitas Research Hospital, Milan. Dr. Cecconi spoke via JAMA Live Stream interview with Howard Bauchner, MD, the Editor in Chief of JAMA.
A summary of comments by Dr. Cecconi and two colleagues was simultaneously published in JAMA (2020 Mar 13. doi: 10.1001/jama.2020.4031).
Dr. Cecconi discussed the progress and medical response to the swiftly expanding outbreak that began on Feb. 20. A man in his 30s was admitted to the Codogno Hospital, Lodi, Lombardy, Italy, in respiratory distress. He tested positive for a new coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID-19). In less than 24 hours, the hospital had 36 cases of COVID-19.
In a slide provided by the Italian National Health Service, the number of cases in Italy stands at 13,882 with 803 associated deaths.
ICU resources have been severely stressed. Before the outbreak, Lombardy had 720 ICU beds (about 5% of total beds). Within 48 hours of the first case, ICU cohorts were formed in 15 hub hospitals totaling 130 COVID-19 ICU beds. By March 7, the total number of dedicated cohorted COVID-19 ICU beds was 482.
“The proportion of ICU admissions represents 12% of the total positive cases, and 16% of all hospitalized patients,” compared with about 5% of ICU admissions reported from China. The difference may be attributable to different criteria for ICU admissions in Italy, compared with China, according to Dr. Cecconi and colleagues.
Dr. Cecconi mentioned that there were relatively few cases in children, and they had relatively mild disease. The death rate among patients remained under 1% up to age 59. For patients aged 60-69 years, the rate was 2.7%; for patients aged 70-79 years, the rate was 9.6%; for those aged 80-89, the rate was much higher at 16.6%.
Modeled forecasts of the potential number of cases in Lombardy are daunting. “The linear model forecasts that approximately 869 ICU admissions could occur by March 20, 2020, whereas the exponential model growth projects that approximately 14,542 ICU admissions could occur by then. Even though these projections are hypothetical and involve various assumptions, any substantial increase in the number of critically ill patients would rapidly exceed total ICU capacity, without even considering other critical admissions, such as for trauma, stroke, and other emergencies,” wrote Dr. Cecconi and his colleagues in JAMA. He said, “We could be on our knees very soon,” referring to the potential dramatic increase in cases.
Dr. Cecconi had some recommendations for other countries in which a major outbreak has not yet occurred. He recommended going beyond expanding ICU and isolation capacity and focus on training staff with simulation for treating these highly contagious patients. His medical center has worked hard to protect staff but 1,116 health care workers have tested positive for the virus. Conditions for staff are very difficult in full protective gear, and Dr. Cecconi commended the heroic work by these doctors and nurses.
In addition, Dr. Cecconi is focused on supportive care for patients and does not recommend using untried approaches on these patients that could cause harm. “Everyone wants to find a specific drug for these patients, but I say there is not particular drug at the moment.” He stressed that, despite the crisis, doctors should focus on evidence-based treatment and tried-and-true supportive care.
Disclosures by Dr. Cecconi are available on the JAMA website.
CORRECTION 3/13/2020 2.18 P.M. The death rate for patients aged 70-79 was corrected.
The outbreak of COVID-19 in the Lombardy region of Italy has severely stressed the medical system and the current level of activity may not be sustainable for long, according to Maurizio Cecconi, MD, of the department of anesthesia and intensive care, Humanitas Research Hospital, Milan. Dr. Cecconi spoke via JAMA Live Stream interview with Howard Bauchner, MD, the Editor in Chief of JAMA.
A summary of comments by Dr. Cecconi and two colleagues was simultaneously published in JAMA (2020 Mar 13. doi: 10.1001/jama.2020.4031).
Dr. Cecconi discussed the progress and medical response to the swiftly expanding outbreak that began on Feb. 20. A man in his 30s was admitted to the Codogno Hospital, Lodi, Lombardy, Italy, in respiratory distress. He tested positive for a new coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID-19). In less than 24 hours, the hospital had 36 cases of COVID-19.
In a slide provided by the Italian National Health Service, the number of cases in Italy stands at 13,882 with 803 associated deaths.
ICU resources have been severely stressed. Before the outbreak, Lombardy had 720 ICU beds (about 5% of total beds). Within 48 hours of the first case, ICU cohorts were formed in 15 hub hospitals totaling 130 COVID-19 ICU beds. By March 7, the total number of dedicated cohorted COVID-19 ICU beds was 482.
“The proportion of ICU admissions represents 12% of the total positive cases, and 16% of all hospitalized patients,” compared with about 5% of ICU admissions reported from China. The difference may be attributable to different criteria for ICU admissions in Italy, compared with China, according to Dr. Cecconi and colleagues.
Dr. Cecconi mentioned that there were relatively few cases in children, and they had relatively mild disease. The death rate among patients remained under 1% up to age 59. For patients aged 60-69 years, the rate was 2.7%; for patients aged 70-79 years, the rate was 9.6%; for those aged 80-89, the rate was much higher at 16.6%.
Modeled forecasts of the potential number of cases in Lombardy are daunting. “The linear model forecasts that approximately 869 ICU admissions could occur by March 20, 2020, whereas the exponential model growth projects that approximately 14,542 ICU admissions could occur by then. Even though these projections are hypothetical and involve various assumptions, any substantial increase in the number of critically ill patients would rapidly exceed total ICU capacity, without even considering other critical admissions, such as for trauma, stroke, and other emergencies,” wrote Dr. Cecconi and his colleagues in JAMA. He said, “We could be on our knees very soon,” referring to the potential dramatic increase in cases.
Dr. Cecconi had some recommendations for other countries in which a major outbreak has not yet occurred. He recommended going beyond expanding ICU and isolation capacity and focus on training staff with simulation for treating these highly contagious patients. His medical center has worked hard to protect staff but 1,116 health care workers have tested positive for the virus. Conditions for staff are very difficult in full protective gear, and Dr. Cecconi commended the heroic work by these doctors and nurses.
In addition, Dr. Cecconi is focused on supportive care for patients and does not recommend using untried approaches on these patients that could cause harm. “Everyone wants to find a specific drug for these patients, but I say there is not particular drug at the moment.” He stressed that, despite the crisis, doctors should focus on evidence-based treatment and tried-and-true supportive care.
Disclosures by Dr. Cecconi are available on the JAMA website.
CORRECTION 3/13/2020 2.18 P.M. The death rate for patients aged 70-79 was corrected.
The outbreak of COVID-19 in the Lombardy region of Italy has severely stressed the medical system and the current level of activity may not be sustainable for long, according to Maurizio Cecconi, MD, of the department of anesthesia and intensive care, Humanitas Research Hospital, Milan. Dr. Cecconi spoke via JAMA Live Stream interview with Howard Bauchner, MD, the Editor in Chief of JAMA.
A summary of comments by Dr. Cecconi and two colleagues was simultaneously published in JAMA (2020 Mar 13. doi: 10.1001/jama.2020.4031).
Dr. Cecconi discussed the progress and medical response to the swiftly expanding outbreak that began on Feb. 20. A man in his 30s was admitted to the Codogno Hospital, Lodi, Lombardy, Italy, in respiratory distress. He tested positive for a new coronavirus, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (COVID-19). In less than 24 hours, the hospital had 36 cases of COVID-19.
In a slide provided by the Italian National Health Service, the number of cases in Italy stands at 13,882 with 803 associated deaths.
ICU resources have been severely stressed. Before the outbreak, Lombardy had 720 ICU beds (about 5% of total beds). Within 48 hours of the first case, ICU cohorts were formed in 15 hub hospitals totaling 130 COVID-19 ICU beds. By March 7, the total number of dedicated cohorted COVID-19 ICU beds was 482.
“The proportion of ICU admissions represents 12% of the total positive cases, and 16% of all hospitalized patients,” compared with about 5% of ICU admissions reported from China. The difference may be attributable to different criteria for ICU admissions in Italy, compared with China, according to Dr. Cecconi and colleagues.
Dr. Cecconi mentioned that there were relatively few cases in children, and they had relatively mild disease. The death rate among patients remained under 1% up to age 59. For patients aged 60-69 years, the rate was 2.7%; for patients aged 70-79 years, the rate was 9.6%; for those aged 80-89, the rate was much higher at 16.6%.
Modeled forecasts of the potential number of cases in Lombardy are daunting. “The linear model forecasts that approximately 869 ICU admissions could occur by March 20, 2020, whereas the exponential model growth projects that approximately 14,542 ICU admissions could occur by then. Even though these projections are hypothetical and involve various assumptions, any substantial increase in the number of critically ill patients would rapidly exceed total ICU capacity, without even considering other critical admissions, such as for trauma, stroke, and other emergencies,” wrote Dr. Cecconi and his colleagues in JAMA. He said, “We could be on our knees very soon,” referring to the potential dramatic increase in cases.
Dr. Cecconi had some recommendations for other countries in which a major outbreak has not yet occurred. He recommended going beyond expanding ICU and isolation capacity and focus on training staff with simulation for treating these highly contagious patients. His medical center has worked hard to protect staff but 1,116 health care workers have tested positive for the virus. Conditions for staff are very difficult in full protective gear, and Dr. Cecconi commended the heroic work by these doctors and nurses.
In addition, Dr. Cecconi is focused on supportive care for patients and does not recommend using untried approaches on these patients that could cause harm. “Everyone wants to find a specific drug for these patients, but I say there is not particular drug at the moment.” He stressed that, despite the crisis, doctors should focus on evidence-based treatment and tried-and-true supportive care.
Disclosures by Dr. Cecconi are available on the JAMA website.
CORRECTION 3/13/2020 2.18 P.M. The death rate for patients aged 70-79 was corrected.
REPORTING FROM JAMA LIVE STREAM
Internist reports from COVID-19 front lines near Seattle
KENT, WASHINGTON – The first thing I learned in this outbreak is that my sense of alarm has been deadened by years of medical practice. As a primary care doctor working south of Seattle, in the University of Washington’s Kent neighborhood clinic, I have dealt with long hours, the sometimes-insurmountable problems of the patients I care for, and the constant, gnawing fear of missing something and doing harm. To get through my day, I’ve done my best to rationalize that fear, to explain it away.
I can’t explain how, when I heard the news of the coronavirus epidemic in China, I didn’t think it would affect me. I can’t explain how news of the first patient presenting to an urgent care north of Seattle didn’t cause me, or all health care providers, to think about how we would respond. I can’t explain why so many doctors were dismissive of the very real threat that was about to explode. I can’t explain why it took 6 weeks for the COVID-19 outbreak to seem real to me.
If you work in a doctor’s office, emergency department, hospital, or urgent care center and have not seen a coronavirus case yet, you may have time to think through what is likely to happen in your community. We did not activate a chain of command or decide how information was going to be communicated to the front line and back to leadership. Few of us ran worst-case scenarios.
By March 12, we had 376 confirmed cases, and likely more than a thousand are undetected. The moment of realization of the severity of the outbreak didn’t come to me until Saturday, Feb. 29. In the week prior, several patients had come into the clinic with symptoms and potential exposures, but not meeting the narrow Centers for Disease Control and Prevention testing criteria. They were all advised by the Washington Department of Health to go home. At the time, it seemed like decent advice. Frontline providers didn’t know that there had been two cases of community transmission weeks before, or that one was about to become the first death in Washington state. I still advised patients to quarantine themselves. In the absence of testing, we had to assume everyone was positive and should stay home until 72 hours after their symptoms resolved. Studying the state’s FMLA [Family and Medical Leave Act] intently, I wrote insistent letters to inflexible bosses, explaining that their employees needed to stay home.
I worked that Saturday. Half of my patients had coughs. Our team insisted that they wear masks. One woman refused, and I refused to see her until she did. In a customer service–oriented health care system, I had been schooled to accommodate almost any patient request. But I was not about to put my staff and other patients at risk. Reluctantly, she complied.
On my lunch break, my partner called me to tell me he was at the grocery store. “Why?” I asked, since we usually went together. It became clear he was worried about an outbreak. He had been following the news closely and tried to tell me how deadly this could get and how quickly the disease could spread. I brushed his fears aside, as more evidence of his sweet and overly cautious nature. “It’ll be fine,” I said with misplaced confidence.
Later that day, I heard about the first death and the outbreak at Life Care, a nursing home north of Seattle. I learned that firefighters who had responded to distress calls were under quarantine. I learned through an epidemiologist that there were likely hundreds of undetected cases throughout Washington.
On Monday, our clinic decided to convert all cases with symptoms into telemedicine visits. Luckily, we had been building the capacity to see and treat patients virtually for a while. We have ramped up quickly, but there have been bumps along the way. It’s difficult to convince those who are anxious about their symptoms to allow us to use telemedicine for everyone’s safety. It is unclear how much liability we are taking on as individual providers with this approach or who will speak up for us if something goes wrong.
Patients don’t seem to know where to get their information, and they have been turning to increasingly bizarre sources. For the poorest, who have had so much trouble accessing care, I cannot blame them for not knowing whom to trust. I post what I know on Twitter and Facebook, but I know I’m no match for cynical social media algorithms.
Testing was still not available at my clinic the first week of March, and it remains largely unavailable throughout much of the country. We have lost weeks of opportunity to contain this. Luckily, on March 4, the University of Washington was finally allowed to use their homegrown test and bypass the limited supply from the CDC. But our capacity at UW is still limited, and the test remained unavailable to the majority of those potentially showing symptoms until March 9.
I am used to being less worried than my patients. I am used to reassuring them. But over the first week of March, I had an eerie sense that my alarm far outstripped theirs. I got relatively few questions about coronavirus, even as the number of cases continued to rise. It wasn’t until the end of the week that I noticed a few were truly fearful. Patients started stealing the gloves and the hand sanitizer, and we had to zealously guard them. My hands are raw from washing.
Throughout this time, I have been grateful for a centralized drive with clear protocols. I am grateful for clear messages at the beginning and end of the day from our CEO. I hope that other clinics model this and have daily in-person meetings, because too much cannot be conveyed in an email when the situation changes hourly.
But our health system nationally was already stretched thin before, and providers have sacrificed a lot, especially in the most critical settings, to provide decent patient care. Now we are asked to risk our health and safety, and our family’s, and I worry about the erosion of trust and work conditions for those on the front lines. I also worry our patients won’t believe us when we have allowed the costs of care to continue to rise and ruin their lives. I worry about the millions of people without doctors to call because they have no insurance, and because so many primary care physicians have left unsustainable jobs.
I am grateful that few of my colleagues have been sick and that those that were called out. I am grateful for the new nurse practitioners in our clinic who took the lion’s share of possibly affected patients and triaged hundreds of phone calls, creating note and message templates that we all use. I am grateful that my clinic manager insisted on doing a drill with all the staff members.
I am grateful that we were reminded that we are a team and that if the call center and cleaning crews and front desk are excluded, then our protocols are useless. I am grateful that our registered nurses quickly shifted to triage. I am grateful that I have testing available.
This week, for the first time since I started working, multiple patients asked how I am doing and expressed their thanks. I am most grateful for them.
I can’t tell you what to do or what is going to happen, but I can tell you that you need to prepare now. You need to run drills and catch the holes in your plans before the pandemic reaches you. You need to be creative and honest about the flaws in your organization that this pandemic will inevitably expose. You need to meet with your team every day and remember that we are all going to be stretched even thinner than before.
Most of us will get through this, but many of us won’t. And for those who do, we need to be honest about our successes and failures. We need to build a system that can do better next time. Because this is not the last pandemic we will face.
Dr. Elisabeth Poorman is a general internist at a University of Washington neighborhood clinic in Kent. She completed her residency at Cambridge (Mass.) Health Alliance and specializes in addiction medicine. She also serves on the editorial advisory board of Internal Medicine News.
KENT, WASHINGTON – The first thing I learned in this outbreak is that my sense of alarm has been deadened by years of medical practice. As a primary care doctor working south of Seattle, in the University of Washington’s Kent neighborhood clinic, I have dealt with long hours, the sometimes-insurmountable problems of the patients I care for, and the constant, gnawing fear of missing something and doing harm. To get through my day, I’ve done my best to rationalize that fear, to explain it away.
I can’t explain how, when I heard the news of the coronavirus epidemic in China, I didn’t think it would affect me. I can’t explain how news of the first patient presenting to an urgent care north of Seattle didn’t cause me, or all health care providers, to think about how we would respond. I can’t explain why so many doctors were dismissive of the very real threat that was about to explode. I can’t explain why it took 6 weeks for the COVID-19 outbreak to seem real to me.
If you work in a doctor’s office, emergency department, hospital, or urgent care center and have not seen a coronavirus case yet, you may have time to think through what is likely to happen in your community. We did not activate a chain of command or decide how information was going to be communicated to the front line and back to leadership. Few of us ran worst-case scenarios.
By March 12, we had 376 confirmed cases, and likely more than a thousand are undetected. The moment of realization of the severity of the outbreak didn’t come to me until Saturday, Feb. 29. In the week prior, several patients had come into the clinic with symptoms and potential exposures, but not meeting the narrow Centers for Disease Control and Prevention testing criteria. They were all advised by the Washington Department of Health to go home. At the time, it seemed like decent advice. Frontline providers didn’t know that there had been two cases of community transmission weeks before, or that one was about to become the first death in Washington state. I still advised patients to quarantine themselves. In the absence of testing, we had to assume everyone was positive and should stay home until 72 hours after their symptoms resolved. Studying the state’s FMLA [Family and Medical Leave Act] intently, I wrote insistent letters to inflexible bosses, explaining that their employees needed to stay home.
I worked that Saturday. Half of my patients had coughs. Our team insisted that they wear masks. One woman refused, and I refused to see her until she did. In a customer service–oriented health care system, I had been schooled to accommodate almost any patient request. But I was not about to put my staff and other patients at risk. Reluctantly, she complied.
On my lunch break, my partner called me to tell me he was at the grocery store. “Why?” I asked, since we usually went together. It became clear he was worried about an outbreak. He had been following the news closely and tried to tell me how deadly this could get and how quickly the disease could spread. I brushed his fears aside, as more evidence of his sweet and overly cautious nature. “It’ll be fine,” I said with misplaced confidence.
Later that day, I heard about the first death and the outbreak at Life Care, a nursing home north of Seattle. I learned that firefighters who had responded to distress calls were under quarantine. I learned through an epidemiologist that there were likely hundreds of undetected cases throughout Washington.
On Monday, our clinic decided to convert all cases with symptoms into telemedicine visits. Luckily, we had been building the capacity to see and treat patients virtually for a while. We have ramped up quickly, but there have been bumps along the way. It’s difficult to convince those who are anxious about their symptoms to allow us to use telemedicine for everyone’s safety. It is unclear how much liability we are taking on as individual providers with this approach or who will speak up for us if something goes wrong.
Patients don’t seem to know where to get their information, and they have been turning to increasingly bizarre sources. For the poorest, who have had so much trouble accessing care, I cannot blame them for not knowing whom to trust. I post what I know on Twitter and Facebook, but I know I’m no match for cynical social media algorithms.
Testing was still not available at my clinic the first week of March, and it remains largely unavailable throughout much of the country. We have lost weeks of opportunity to contain this. Luckily, on March 4, the University of Washington was finally allowed to use their homegrown test and bypass the limited supply from the CDC. But our capacity at UW is still limited, and the test remained unavailable to the majority of those potentially showing symptoms until March 9.
I am used to being less worried than my patients. I am used to reassuring them. But over the first week of March, I had an eerie sense that my alarm far outstripped theirs. I got relatively few questions about coronavirus, even as the number of cases continued to rise. It wasn’t until the end of the week that I noticed a few were truly fearful. Patients started stealing the gloves and the hand sanitizer, and we had to zealously guard them. My hands are raw from washing.
Throughout this time, I have been grateful for a centralized drive with clear protocols. I am grateful for clear messages at the beginning and end of the day from our CEO. I hope that other clinics model this and have daily in-person meetings, because too much cannot be conveyed in an email when the situation changes hourly.
But our health system nationally was already stretched thin before, and providers have sacrificed a lot, especially in the most critical settings, to provide decent patient care. Now we are asked to risk our health and safety, and our family’s, and I worry about the erosion of trust and work conditions for those on the front lines. I also worry our patients won’t believe us when we have allowed the costs of care to continue to rise and ruin their lives. I worry about the millions of people without doctors to call because they have no insurance, and because so many primary care physicians have left unsustainable jobs.
I am grateful that few of my colleagues have been sick and that those that were called out. I am grateful for the new nurse practitioners in our clinic who took the lion’s share of possibly affected patients and triaged hundreds of phone calls, creating note and message templates that we all use. I am grateful that my clinic manager insisted on doing a drill with all the staff members.
I am grateful that we were reminded that we are a team and that if the call center and cleaning crews and front desk are excluded, then our protocols are useless. I am grateful that our registered nurses quickly shifted to triage. I am grateful that I have testing available.
This week, for the first time since I started working, multiple patients asked how I am doing and expressed their thanks. I am most grateful for them.
I can’t tell you what to do or what is going to happen, but I can tell you that you need to prepare now. You need to run drills and catch the holes in your plans before the pandemic reaches you. You need to be creative and honest about the flaws in your organization that this pandemic will inevitably expose. You need to meet with your team every day and remember that we are all going to be stretched even thinner than before.
Most of us will get through this, but many of us won’t. And for those who do, we need to be honest about our successes and failures. We need to build a system that can do better next time. Because this is not the last pandemic we will face.
Dr. Elisabeth Poorman is a general internist at a University of Washington neighborhood clinic in Kent. She completed her residency at Cambridge (Mass.) Health Alliance and specializes in addiction medicine. She also serves on the editorial advisory board of Internal Medicine News.
KENT, WASHINGTON – The first thing I learned in this outbreak is that my sense of alarm has been deadened by years of medical practice. As a primary care doctor working south of Seattle, in the University of Washington’s Kent neighborhood clinic, I have dealt with long hours, the sometimes-insurmountable problems of the patients I care for, and the constant, gnawing fear of missing something and doing harm. To get through my day, I’ve done my best to rationalize that fear, to explain it away.
I can’t explain how, when I heard the news of the coronavirus epidemic in China, I didn’t think it would affect me. I can’t explain how news of the first patient presenting to an urgent care north of Seattle didn’t cause me, or all health care providers, to think about how we would respond. I can’t explain why so many doctors were dismissive of the very real threat that was about to explode. I can’t explain why it took 6 weeks for the COVID-19 outbreak to seem real to me.
If you work in a doctor’s office, emergency department, hospital, or urgent care center and have not seen a coronavirus case yet, you may have time to think through what is likely to happen in your community. We did not activate a chain of command or decide how information was going to be communicated to the front line and back to leadership. Few of us ran worst-case scenarios.
By March 12, we had 376 confirmed cases, and likely more than a thousand are undetected. The moment of realization of the severity of the outbreak didn’t come to me until Saturday, Feb. 29. In the week prior, several patients had come into the clinic with symptoms and potential exposures, but not meeting the narrow Centers for Disease Control and Prevention testing criteria. They were all advised by the Washington Department of Health to go home. At the time, it seemed like decent advice. Frontline providers didn’t know that there had been two cases of community transmission weeks before, or that one was about to become the first death in Washington state. I still advised patients to quarantine themselves. In the absence of testing, we had to assume everyone was positive and should stay home until 72 hours after their symptoms resolved. Studying the state’s FMLA [Family and Medical Leave Act] intently, I wrote insistent letters to inflexible bosses, explaining that their employees needed to stay home.
I worked that Saturday. Half of my patients had coughs. Our team insisted that they wear masks. One woman refused, and I refused to see her until she did. In a customer service–oriented health care system, I had been schooled to accommodate almost any patient request. But I was not about to put my staff and other patients at risk. Reluctantly, she complied.
On my lunch break, my partner called me to tell me he was at the grocery store. “Why?” I asked, since we usually went together. It became clear he was worried about an outbreak. He had been following the news closely and tried to tell me how deadly this could get and how quickly the disease could spread. I brushed his fears aside, as more evidence of his sweet and overly cautious nature. “It’ll be fine,” I said with misplaced confidence.
Later that day, I heard about the first death and the outbreak at Life Care, a nursing home north of Seattle. I learned that firefighters who had responded to distress calls were under quarantine. I learned through an epidemiologist that there were likely hundreds of undetected cases throughout Washington.
On Monday, our clinic decided to convert all cases with symptoms into telemedicine visits. Luckily, we had been building the capacity to see and treat patients virtually for a while. We have ramped up quickly, but there have been bumps along the way. It’s difficult to convince those who are anxious about their symptoms to allow us to use telemedicine for everyone’s safety. It is unclear how much liability we are taking on as individual providers with this approach or who will speak up for us if something goes wrong.
Patients don’t seem to know where to get their information, and they have been turning to increasingly bizarre sources. For the poorest, who have had so much trouble accessing care, I cannot blame them for not knowing whom to trust. I post what I know on Twitter and Facebook, but I know I’m no match for cynical social media algorithms.
Testing was still not available at my clinic the first week of March, and it remains largely unavailable throughout much of the country. We have lost weeks of opportunity to contain this. Luckily, on March 4, the University of Washington was finally allowed to use their homegrown test and bypass the limited supply from the CDC. But our capacity at UW is still limited, and the test remained unavailable to the majority of those potentially showing symptoms until March 9.
I am used to being less worried than my patients. I am used to reassuring them. But over the first week of March, I had an eerie sense that my alarm far outstripped theirs. I got relatively few questions about coronavirus, even as the number of cases continued to rise. It wasn’t until the end of the week that I noticed a few were truly fearful. Patients started stealing the gloves and the hand sanitizer, and we had to zealously guard them. My hands are raw from washing.
Throughout this time, I have been grateful for a centralized drive with clear protocols. I am grateful for clear messages at the beginning and end of the day from our CEO. I hope that other clinics model this and have daily in-person meetings, because too much cannot be conveyed in an email when the situation changes hourly.
But our health system nationally was already stretched thin before, and providers have sacrificed a lot, especially in the most critical settings, to provide decent patient care. Now we are asked to risk our health and safety, and our family’s, and I worry about the erosion of trust and work conditions for those on the front lines. I also worry our patients won’t believe us when we have allowed the costs of care to continue to rise and ruin their lives. I worry about the millions of people without doctors to call because they have no insurance, and because so many primary care physicians have left unsustainable jobs.
I am grateful that few of my colleagues have been sick and that those that were called out. I am grateful for the new nurse practitioners in our clinic who took the lion’s share of possibly affected patients and triaged hundreds of phone calls, creating note and message templates that we all use. I am grateful that my clinic manager insisted on doing a drill with all the staff members.
I am grateful that we were reminded that we are a team and that if the call center and cleaning crews and front desk are excluded, then our protocols are useless. I am grateful that our registered nurses quickly shifted to triage. I am grateful that I have testing available.
This week, for the first time since I started working, multiple patients asked how I am doing and expressed their thanks. I am most grateful for them.
I can’t tell you what to do or what is going to happen, but I can tell you that you need to prepare now. You need to run drills and catch the holes in your plans before the pandemic reaches you. You need to be creative and honest about the flaws in your organization that this pandemic will inevitably expose. You need to meet with your team every day and remember that we are all going to be stretched even thinner than before.
Most of us will get through this, but many of us won’t. And for those who do, we need to be honest about our successes and failures. We need to build a system that can do better next time. Because this is not the last pandemic we will face.
Dr. Elisabeth Poorman is a general internist at a University of Washington neighborhood clinic in Kent. She completed her residency at Cambridge (Mass.) Health Alliance and specializes in addiction medicine. She also serves on the editorial advisory board of Internal Medicine News.
Wuhan case review: COVID-19 characteristics differ in children vs. adults
Pediatric cases of COVID-19 infection are typically mild, but underlying coinfection may be more common in children than in adults, according to an analysis of clinical, laboratory, and chest CT features of pediatric inpatients in Wuhan, China.
The findings point toward a need for early chest CT with corresponding pathogen detection in children with suspected COVID-19 infection, Wei Xia, MD, of Huazhong University of Science and Technology, Wuhan, China, and colleagues reported in Pediatric Pulmonology.
The most common symptoms in 20 pediatric patients hospitalized between Jan. 23 and Feb. 8, 2020, with COVID-19 infection confirmed by the pharyngeal swab COVID-19 nucleic acid test were fever and cough, which occurred in 60% and 65% of patients, respectively. Coinfection was detected in eight patients (40%), they noted.
Clinical manifestations were similar to those seen in adults, but overall symptoms were relatively mild and overall prognosis was good. Of particular note, 7 of the 20 (35%) patients had a previously diagnosed congenital or acquired diseases, suggesting that children with underlying conditions may be more susceptible, Dr. Xia and colleagues wrote.
Laboratory findings also were notable in that 80% of the children had procalcitonin (PCT) elevations not typically seen in adults with COVID-19. PCT is a marker for bacterial infection and “[this finding] may suggest that routine antibacterial treatment should be considered in pediatric patients,” the investigators wrote.
As for imaging results, chest CT findings in children were similar to those in adults.“The typical manifestations were unilateral or bilateral subpleural ground-glass opacities, and consolidations with surrounding halo signs,” Dr. Xia and associates wrote, adding that consolidations with surrounding halo sign accounted for about half the pediatric cases and should be considered as “typical signs in pediatric patients.”
Pediatric cases were “rather rare” in the early days of the COVID-19 outbreak in Wuhan, where the first cases of infection were reported.
“As a pediatric group is usually susceptible to upper respiratory tract infection, because of their developing immune system, the delayed presence of pediatric patients is confusing,” the investigators wrote, noting that a low detection rate of pharyngeal swab COVID-19 nucleic acid test, distinguishing the virus from other common respiratory tract infectious pathogens in pediatric patients, “is still a problem.”
To better characterize the clinical and imaging features in children versus adults with COVID-19, Dr. Xia and associates reviewed these 20 pediatric cases, including 13 boys and 7 girls with ages ranging from less than 1 month to 14 years, 7 months (median 2 years, 1.5 months). Thirteen had an identified close contact with a COVID-19–diagnosed family member, and all were treated in an isolation ward. A total of 18 children were cured and discharged after an average stay of 13 days, and 2 neonates remained under observation because of positive swab results with negative CT findings. The investigators speculated that the different findings in neonates were perhaps caused by the influence of delivery on sampling or the specific CT manifestations for neonates, adding that more samples are needed for further clarification.
Based on these findings, “the CT imaging of COVID-19 infection should be differentiated with other virus pneumonias such as influenza virus, parainfluenza virus, respiratory syncytial virus, and adenovirus,” they concluded. It also should “be differentiated from bacterial pneumonia, mycoplasma pneumonia, and chlamydia pneumonia ... the density of pneumonia lesions caused by the latter pathogens is relatively higher.”
However, Dr. Xia and colleagues noted that chest CT manifestations of pneumonia caused by different pathogens overlap, and COVID-19 pneumonia “can be superimposed with serious and complex imaging manifestations, so epidemiological and etiological examinations should be combined.”
The investigators concluded that COVID-19 virus pneumonia in children is generally mild, and that the characteristic changes of subpleural ground-glass opacities and consolidations with surrounding halo on chest CT provide an “effective means for follow-up and evaluating the changes of lung lesions.”
“In the case that the positive rate of COVID-19 nucleic acid test from pharyngeal swab samples is not high, the early detection of lesions by CT is conducive to reasonable management and early treatment for pediatric patients. However, the diagnosis of COVID-19 pneumonia by CT imaging alone is not sufficient enough, especially in the case of coinfection with other pathogens,” Dr. Xia and associates wrote. “Therefore, early chest CT screening and timely follow-up, combined with corresponding pathogen detection, is a feasible clinical protocol in children.”
An early study
In a separate retrospective analysis described in a letter to the editor of the New England Journal of Medicine, Weiyong Liu, PhD, of Tongji Hospital of Huazhong University of Science and Technology and colleagues found that the most frequently detected pathogens in 366 children under the age of 16 years hospitalized with respiratory infections in Wuhan during Jan. 7-15, 2020, were influenza A virus (6.3% of cases) and influenza B virus (5.5% of cases), whereas COVID-19 was detected in 1.6% of cases.
The median age of the COVID-19 patients in that series was 3 years (range 1-7 years), and in contrast to the findings of Xia et al., all previously had been “completely healthy.” Common characteristics were high fever and cough in all six patients, and vomiting in four patients. Five had pneumonia as assessed by X-ray, and CTs showed typical viral pneumonia patterns.
One patient was admitted to a pediatric ICU. All patients received antiviral agents, antibiotic agents, and supportive therapies; all recovered after a median hospital stay of 7.5 days (median range, 5-13 days).
In contrast with the findings of Xia et al., the findings of Liu et al. showed COVID-19 caused moderate to severe respiratory illness in children, and that infections in children were occurring early in the epidemic.
Some perspective
In an interview regarding the findings by Xia et al., Stephen I. Pelton, MD, professor of pediatrics and epidemiology at Boston University, and director of pediatric infectious diseases at Boston Medical Center, noted the absence of fever in 40% of cases.
“This is important, as the criteria for testing by public health departments has been high fever, cough, and shortness of breath,” he said. “The absence of fever is not inconsistent with COVID-19 disease.”
Another important point regarding the findings by Xia et al. is that the highest attack rates appear to be in children under 1 year of age, he said, further noting that the finding of concurrent influenza A, influenza B, or respiratory syncytial virus underscores that “concurrent infection can occur, and the presence of another virus in diagnostic tests does not mean that COVID-19 is not causal.”
As for whether the finding of elevated procalcitonin levels in 80% of cases reflects COVID-19 disease or coinfection with bacteria, the answer is unclear. But none of the children in the study were proven to have bacterial disease, he said, adding that “this marker will need to be interpreted with caution in the setting of COVID-19 disease.”
Dr. Xia and colleagues reported having no disclosures. Dr. Liu and associates also reported having no disclosures. The study by Liu et al. was supported by the Ministry of Science and Technology of China, the National Mega Project on Major Infectious Disease Prevention, and the National Key Research and Development Program of China.
SOURCES: Xia W et al. Ped Pulmonol. 2020 Mar 5. doi: 10.1002/ppul.24718; Liu W et al. N Engl J Med. 2020 Mar 12. doi: 10.1056/NEJMc2003717.
Pediatric cases of COVID-19 infection are typically mild, but underlying coinfection may be more common in children than in adults, according to an analysis of clinical, laboratory, and chest CT features of pediatric inpatients in Wuhan, China.
The findings point toward a need for early chest CT with corresponding pathogen detection in children with suspected COVID-19 infection, Wei Xia, MD, of Huazhong University of Science and Technology, Wuhan, China, and colleagues reported in Pediatric Pulmonology.
The most common symptoms in 20 pediatric patients hospitalized between Jan. 23 and Feb. 8, 2020, with COVID-19 infection confirmed by the pharyngeal swab COVID-19 nucleic acid test were fever and cough, which occurred in 60% and 65% of patients, respectively. Coinfection was detected in eight patients (40%), they noted.
Clinical manifestations were similar to those seen in adults, but overall symptoms were relatively mild and overall prognosis was good. Of particular note, 7 of the 20 (35%) patients had a previously diagnosed congenital or acquired diseases, suggesting that children with underlying conditions may be more susceptible, Dr. Xia and colleagues wrote.
Laboratory findings also were notable in that 80% of the children had procalcitonin (PCT) elevations not typically seen in adults with COVID-19. PCT is a marker for bacterial infection and “[this finding] may suggest that routine antibacterial treatment should be considered in pediatric patients,” the investigators wrote.
As for imaging results, chest CT findings in children were similar to those in adults.“The typical manifestations were unilateral or bilateral subpleural ground-glass opacities, and consolidations with surrounding halo signs,” Dr. Xia and associates wrote, adding that consolidations with surrounding halo sign accounted for about half the pediatric cases and should be considered as “typical signs in pediatric patients.”
Pediatric cases were “rather rare” in the early days of the COVID-19 outbreak in Wuhan, where the first cases of infection were reported.
“As a pediatric group is usually susceptible to upper respiratory tract infection, because of their developing immune system, the delayed presence of pediatric patients is confusing,” the investigators wrote, noting that a low detection rate of pharyngeal swab COVID-19 nucleic acid test, distinguishing the virus from other common respiratory tract infectious pathogens in pediatric patients, “is still a problem.”
To better characterize the clinical and imaging features in children versus adults with COVID-19, Dr. Xia and associates reviewed these 20 pediatric cases, including 13 boys and 7 girls with ages ranging from less than 1 month to 14 years, 7 months (median 2 years, 1.5 months). Thirteen had an identified close contact with a COVID-19–diagnosed family member, and all were treated in an isolation ward. A total of 18 children were cured and discharged after an average stay of 13 days, and 2 neonates remained under observation because of positive swab results with negative CT findings. The investigators speculated that the different findings in neonates were perhaps caused by the influence of delivery on sampling or the specific CT manifestations for neonates, adding that more samples are needed for further clarification.
Based on these findings, “the CT imaging of COVID-19 infection should be differentiated with other virus pneumonias such as influenza virus, parainfluenza virus, respiratory syncytial virus, and adenovirus,” they concluded. It also should “be differentiated from bacterial pneumonia, mycoplasma pneumonia, and chlamydia pneumonia ... the density of pneumonia lesions caused by the latter pathogens is relatively higher.”
However, Dr. Xia and colleagues noted that chest CT manifestations of pneumonia caused by different pathogens overlap, and COVID-19 pneumonia “can be superimposed with serious and complex imaging manifestations, so epidemiological and etiological examinations should be combined.”
The investigators concluded that COVID-19 virus pneumonia in children is generally mild, and that the characteristic changes of subpleural ground-glass opacities and consolidations with surrounding halo on chest CT provide an “effective means for follow-up and evaluating the changes of lung lesions.”
“In the case that the positive rate of COVID-19 nucleic acid test from pharyngeal swab samples is not high, the early detection of lesions by CT is conducive to reasonable management and early treatment for pediatric patients. However, the diagnosis of COVID-19 pneumonia by CT imaging alone is not sufficient enough, especially in the case of coinfection with other pathogens,” Dr. Xia and associates wrote. “Therefore, early chest CT screening and timely follow-up, combined with corresponding pathogen detection, is a feasible clinical protocol in children.”
An early study
In a separate retrospective analysis described in a letter to the editor of the New England Journal of Medicine, Weiyong Liu, PhD, of Tongji Hospital of Huazhong University of Science and Technology and colleagues found that the most frequently detected pathogens in 366 children under the age of 16 years hospitalized with respiratory infections in Wuhan during Jan. 7-15, 2020, were influenza A virus (6.3% of cases) and influenza B virus (5.5% of cases), whereas COVID-19 was detected in 1.6% of cases.
The median age of the COVID-19 patients in that series was 3 years (range 1-7 years), and in contrast to the findings of Xia et al., all previously had been “completely healthy.” Common characteristics were high fever and cough in all six patients, and vomiting in four patients. Five had pneumonia as assessed by X-ray, and CTs showed typical viral pneumonia patterns.
One patient was admitted to a pediatric ICU. All patients received antiviral agents, antibiotic agents, and supportive therapies; all recovered after a median hospital stay of 7.5 days (median range, 5-13 days).
In contrast with the findings of Xia et al., the findings of Liu et al. showed COVID-19 caused moderate to severe respiratory illness in children, and that infections in children were occurring early in the epidemic.
Some perspective
In an interview regarding the findings by Xia et al., Stephen I. Pelton, MD, professor of pediatrics and epidemiology at Boston University, and director of pediatric infectious diseases at Boston Medical Center, noted the absence of fever in 40% of cases.
“This is important, as the criteria for testing by public health departments has been high fever, cough, and shortness of breath,” he said. “The absence of fever is not inconsistent with COVID-19 disease.”
Another important point regarding the findings by Xia et al. is that the highest attack rates appear to be in children under 1 year of age, he said, further noting that the finding of concurrent influenza A, influenza B, or respiratory syncytial virus underscores that “concurrent infection can occur, and the presence of another virus in diagnostic tests does not mean that COVID-19 is not causal.”
As for whether the finding of elevated procalcitonin levels in 80% of cases reflects COVID-19 disease or coinfection with bacteria, the answer is unclear. But none of the children in the study were proven to have bacterial disease, he said, adding that “this marker will need to be interpreted with caution in the setting of COVID-19 disease.”
Dr. Xia and colleagues reported having no disclosures. Dr. Liu and associates also reported having no disclosures. The study by Liu et al. was supported by the Ministry of Science and Technology of China, the National Mega Project on Major Infectious Disease Prevention, and the National Key Research and Development Program of China.
SOURCES: Xia W et al. Ped Pulmonol. 2020 Mar 5. doi: 10.1002/ppul.24718; Liu W et al. N Engl J Med. 2020 Mar 12. doi: 10.1056/NEJMc2003717.
Pediatric cases of COVID-19 infection are typically mild, but underlying coinfection may be more common in children than in adults, according to an analysis of clinical, laboratory, and chest CT features of pediatric inpatients in Wuhan, China.
The findings point toward a need for early chest CT with corresponding pathogen detection in children with suspected COVID-19 infection, Wei Xia, MD, of Huazhong University of Science and Technology, Wuhan, China, and colleagues reported in Pediatric Pulmonology.
The most common symptoms in 20 pediatric patients hospitalized between Jan. 23 and Feb. 8, 2020, with COVID-19 infection confirmed by the pharyngeal swab COVID-19 nucleic acid test were fever and cough, which occurred in 60% and 65% of patients, respectively. Coinfection was detected in eight patients (40%), they noted.
Clinical manifestations were similar to those seen in adults, but overall symptoms were relatively mild and overall prognosis was good. Of particular note, 7 of the 20 (35%) patients had a previously diagnosed congenital or acquired diseases, suggesting that children with underlying conditions may be more susceptible, Dr. Xia and colleagues wrote.
Laboratory findings also were notable in that 80% of the children had procalcitonin (PCT) elevations not typically seen in adults with COVID-19. PCT is a marker for bacterial infection and “[this finding] may suggest that routine antibacterial treatment should be considered in pediatric patients,” the investigators wrote.
As for imaging results, chest CT findings in children were similar to those in adults.“The typical manifestations were unilateral or bilateral subpleural ground-glass opacities, and consolidations with surrounding halo signs,” Dr. Xia and associates wrote, adding that consolidations with surrounding halo sign accounted for about half the pediatric cases and should be considered as “typical signs in pediatric patients.”
Pediatric cases were “rather rare” in the early days of the COVID-19 outbreak in Wuhan, where the first cases of infection were reported.
“As a pediatric group is usually susceptible to upper respiratory tract infection, because of their developing immune system, the delayed presence of pediatric patients is confusing,” the investigators wrote, noting that a low detection rate of pharyngeal swab COVID-19 nucleic acid test, distinguishing the virus from other common respiratory tract infectious pathogens in pediatric patients, “is still a problem.”
To better characterize the clinical and imaging features in children versus adults with COVID-19, Dr. Xia and associates reviewed these 20 pediatric cases, including 13 boys and 7 girls with ages ranging from less than 1 month to 14 years, 7 months (median 2 years, 1.5 months). Thirteen had an identified close contact with a COVID-19–diagnosed family member, and all were treated in an isolation ward. A total of 18 children were cured and discharged after an average stay of 13 days, and 2 neonates remained under observation because of positive swab results with negative CT findings. The investigators speculated that the different findings in neonates were perhaps caused by the influence of delivery on sampling or the specific CT manifestations for neonates, adding that more samples are needed for further clarification.
Based on these findings, “the CT imaging of COVID-19 infection should be differentiated with other virus pneumonias such as influenza virus, parainfluenza virus, respiratory syncytial virus, and adenovirus,” they concluded. It also should “be differentiated from bacterial pneumonia, mycoplasma pneumonia, and chlamydia pneumonia ... the density of pneumonia lesions caused by the latter pathogens is relatively higher.”
However, Dr. Xia and colleagues noted that chest CT manifestations of pneumonia caused by different pathogens overlap, and COVID-19 pneumonia “can be superimposed with serious and complex imaging manifestations, so epidemiological and etiological examinations should be combined.”
The investigators concluded that COVID-19 virus pneumonia in children is generally mild, and that the characteristic changes of subpleural ground-glass opacities and consolidations with surrounding halo on chest CT provide an “effective means for follow-up and evaluating the changes of lung lesions.”
“In the case that the positive rate of COVID-19 nucleic acid test from pharyngeal swab samples is not high, the early detection of lesions by CT is conducive to reasonable management and early treatment for pediatric patients. However, the diagnosis of COVID-19 pneumonia by CT imaging alone is not sufficient enough, especially in the case of coinfection with other pathogens,” Dr. Xia and associates wrote. “Therefore, early chest CT screening and timely follow-up, combined with corresponding pathogen detection, is a feasible clinical protocol in children.”
An early study
In a separate retrospective analysis described in a letter to the editor of the New England Journal of Medicine, Weiyong Liu, PhD, of Tongji Hospital of Huazhong University of Science and Technology and colleagues found that the most frequently detected pathogens in 366 children under the age of 16 years hospitalized with respiratory infections in Wuhan during Jan. 7-15, 2020, were influenza A virus (6.3% of cases) and influenza B virus (5.5% of cases), whereas COVID-19 was detected in 1.6% of cases.
The median age of the COVID-19 patients in that series was 3 years (range 1-7 years), and in contrast to the findings of Xia et al., all previously had been “completely healthy.” Common characteristics were high fever and cough in all six patients, and vomiting in four patients. Five had pneumonia as assessed by X-ray, and CTs showed typical viral pneumonia patterns.
One patient was admitted to a pediatric ICU. All patients received antiviral agents, antibiotic agents, and supportive therapies; all recovered after a median hospital stay of 7.5 days (median range, 5-13 days).
In contrast with the findings of Xia et al., the findings of Liu et al. showed COVID-19 caused moderate to severe respiratory illness in children, and that infections in children were occurring early in the epidemic.
Some perspective
In an interview regarding the findings by Xia et al., Stephen I. Pelton, MD, professor of pediatrics and epidemiology at Boston University, and director of pediatric infectious diseases at Boston Medical Center, noted the absence of fever in 40% of cases.
“This is important, as the criteria for testing by public health departments has been high fever, cough, and shortness of breath,” he said. “The absence of fever is not inconsistent with COVID-19 disease.”
Another important point regarding the findings by Xia et al. is that the highest attack rates appear to be in children under 1 year of age, he said, further noting that the finding of concurrent influenza A, influenza B, or respiratory syncytial virus underscores that “concurrent infection can occur, and the presence of another virus in diagnostic tests does not mean that COVID-19 is not causal.”
As for whether the finding of elevated procalcitonin levels in 80% of cases reflects COVID-19 disease or coinfection with bacteria, the answer is unclear. But none of the children in the study were proven to have bacterial disease, he said, adding that “this marker will need to be interpreted with caution in the setting of COVID-19 disease.”
Dr. Xia and colleagues reported having no disclosures. Dr. Liu and associates also reported having no disclosures. The study by Liu et al. was supported by the Ministry of Science and Technology of China, the National Mega Project on Major Infectious Disease Prevention, and the National Key Research and Development Program of China.
SOURCES: Xia W et al. Ped Pulmonol. 2020 Mar 5. doi: 10.1002/ppul.24718; Liu W et al. N Engl J Med. 2020 Mar 12. doi: 10.1056/NEJMc2003717.
FROM PEDIATRIC PULMONOLOGY
Marijuana allergies on the rise
“Cannabis sativa is a weed and it causes reactions just like any other pollen allergy,” said William Silvers, MD, from the University of Colorado School of Medicine in Aurora.
Silvers’ clinic began to see people with allergic reactions to the plant after the increase in direct exposure that accompanied the legalization of recreational marijuana in Colorado. For people with allergic tendencies, first- and second-hand exposure to C. sativa will increase “classic responses,” such as allergic rhinitis, sneezing, wheezing, itching, and asthma, he told Medscape Medical News.
Smoking the weed, direct exposure to the plant, contact with others who have touched plants, and breathing air in a grow operation “can all cause reactions,” he said. “And the more exposure they had, the greater the reaction, especially those who have allergic tendency,” he said.
The type of exposure to C. sativa is also a factor. Smoking the plant can induce typical allergic responses, the ingestion of hemp seed has been known to induce anaphylaxis, and “working with the plant can lead to dermatitis or contact urticaria,” he explained.
Edibles made with C. sativa have led to overdoses because dosing is difficult to determine. “It takes an hour or so to have an effect, so you don›t have as much control as inhaling it,” Silvers explained.
Stoned Fruit, Stoned Patient
A 2018 case report describes a 24-year-old daily marijuana smoker who experienced anaphylaxis after ingesting hemp seed. He had a history of allergies to stoned fruits, nuts, crustaceans, and aeroallergens. It was his first known exposure to hemp seed.
The patient developed urticaria on his arms after contact with C. sativa leaves and flowers, but had no reaction when smoking marijuana. This case indicates how important mode of exposure is.
“There are only a few cases of anaphylaxis known from ingestion of hemp seed,” Silvers said, “but the ‘stoned fruit, stoned patients’ cross-reactivity looks to be a real thing.”
People allergic to ragweed and sage are more likely than others to have a reaction to cantaloupe and other fruits in the melon family, he explained. There is a common antigen in the C. sativa pollen and in certain foods with cross-reacting proteins, such as tomato, peach, and hazelnut. “We see a pollen and food cross-reactivity via nonspecific lipid transfer proteins.”
A 2017 review of C. sativa allergy points out that few reports of IgE-dependent allergic reactions have been published because of the illegal status of cannabis. However, it is becoming more prevalent as a potential allergen. For example, in Nebraska, C. sativa pollen accounts for 36% of the total pollen count.
People with IgE-mediated cannabis allergy can have a sensitization to the nonspecific lipid transfer protein of C. sativa, Can s 3, which might explain the secondary plant-derived food allergies seen in European patients with a cannabis allergy, according to the review. Can s 3 cross-reacts with various plant homologues.
“This is the sort of information that allergists need to have,” Silvers said.
Stigma Limits Discussion
The fact that federal law prohibits cannabis use in the United States has made research difficult.
A strain distributed by the University of Mississippi can be used for research, “but its potency is very low, at 5% or 7%,” Silvers explained. At medical marijuana dispensaries, the potency of the flower can be as high as 25%, and in other forms, the THC content can be above 80%.
The legal status makes cannabis allergy difficult to diagnose and impossible to treat. Immunotherapy is out of the question. “With federal illegality, we need to stay out of trouble in that regard,” said Silvers, adding that, currently, avoidance is advised.
But research is emerging from Canada, where medicinal and recreational marijuana use is legal.
Stigma around cannabis is still high. “Nobody wants to be seen as a ‘pot doctor’,” said Silvers. But after it became legal in Colorado in 2015, he was asked to give a talk and decided to speak up.
“I have never written a medical prescription for marijuana,” he said, explaining that he is involved with the Center for Bioethics and Humanities at the University of Colorado. “I try to take a societal as well as a medical perspective, looking at the value and concerns for abuse and misuse.”
“As it becomes more available, more legalized, patients are having more reactions,” he said. “Allergists need to get in the game.”
Attitudes need to change. Physicians and allergists need to understand what’s happening in the population “and be open-minded about it so they know what to do,” he added.
Patients Don’t Want to Be Told to Stop
Users of medical marijuana can become dependent, said Ellen Burnham, MD, also from the University of Colorado.
“Patients want a blessing from care providers that it’s okay to use,” she told Medscape Medical News. “We’re in a state where people are really interested in holistic approaches to health, and cannabis is a natural product, but it may exacerbate allergies.”
Some components of cannabis might have bronchodilator properties but there are so many unknowns at this time. “I don’t think allergists should be recommending or condoning cannabis as part of a patient’s therapy,” she said. “It’s not okay for everybody.”
As business flourishes for operators in the cannabis industry and for the legal profession, Burnham said she worries that there isn’t enough protection for workers. “Do workers exposed to plant material on a daily basis have adequate workplace protection,” such as masks and gowns? “There’s a downstream effect that impacts people that nobody has really thought about,” she pointed out.
If the cannabis industry becomes driven by money, with a lobby like the tobacco industry, there will be no way to keep people who are vulnerable from using cannabis.
Is an occasional joint, much like an occasional glass of wine, okay? “We don’t know,” said Burnham. “We just don’t have enough information about it.”
Research is needed to develop medicinal strains of cannabidiol, cannabigerol, and cannabinol, which offer “medicinal and anti-inflammatory relief without the psychologic affects,” Silvers added.
This article first appeared on Medscape.com.
“Cannabis sativa is a weed and it causes reactions just like any other pollen allergy,” said William Silvers, MD, from the University of Colorado School of Medicine in Aurora.
Silvers’ clinic began to see people with allergic reactions to the plant after the increase in direct exposure that accompanied the legalization of recreational marijuana in Colorado. For people with allergic tendencies, first- and second-hand exposure to C. sativa will increase “classic responses,” such as allergic rhinitis, sneezing, wheezing, itching, and asthma, he told Medscape Medical News.
Smoking the weed, direct exposure to the plant, contact with others who have touched plants, and breathing air in a grow operation “can all cause reactions,” he said. “And the more exposure they had, the greater the reaction, especially those who have allergic tendency,” he said.
The type of exposure to C. sativa is also a factor. Smoking the plant can induce typical allergic responses, the ingestion of hemp seed has been known to induce anaphylaxis, and “working with the plant can lead to dermatitis or contact urticaria,” he explained.
Edibles made with C. sativa have led to overdoses because dosing is difficult to determine. “It takes an hour or so to have an effect, so you don›t have as much control as inhaling it,” Silvers explained.
Stoned Fruit, Stoned Patient
A 2018 case report describes a 24-year-old daily marijuana smoker who experienced anaphylaxis after ingesting hemp seed. He had a history of allergies to stoned fruits, nuts, crustaceans, and aeroallergens. It was his first known exposure to hemp seed.
The patient developed urticaria on his arms after contact with C. sativa leaves and flowers, but had no reaction when smoking marijuana. This case indicates how important mode of exposure is.
“There are only a few cases of anaphylaxis known from ingestion of hemp seed,” Silvers said, “but the ‘stoned fruit, stoned patients’ cross-reactivity looks to be a real thing.”
People allergic to ragweed and sage are more likely than others to have a reaction to cantaloupe and other fruits in the melon family, he explained. There is a common antigen in the C. sativa pollen and in certain foods with cross-reacting proteins, such as tomato, peach, and hazelnut. “We see a pollen and food cross-reactivity via nonspecific lipid transfer proteins.”
A 2017 review of C. sativa allergy points out that few reports of IgE-dependent allergic reactions have been published because of the illegal status of cannabis. However, it is becoming more prevalent as a potential allergen. For example, in Nebraska, C. sativa pollen accounts for 36% of the total pollen count.
People with IgE-mediated cannabis allergy can have a sensitization to the nonspecific lipid transfer protein of C. sativa, Can s 3, which might explain the secondary plant-derived food allergies seen in European patients with a cannabis allergy, according to the review. Can s 3 cross-reacts with various plant homologues.
“This is the sort of information that allergists need to have,” Silvers said.
Stigma Limits Discussion
The fact that federal law prohibits cannabis use in the United States has made research difficult.
A strain distributed by the University of Mississippi can be used for research, “but its potency is very low, at 5% or 7%,” Silvers explained. At medical marijuana dispensaries, the potency of the flower can be as high as 25%, and in other forms, the THC content can be above 80%.
The legal status makes cannabis allergy difficult to diagnose and impossible to treat. Immunotherapy is out of the question. “With federal illegality, we need to stay out of trouble in that regard,” said Silvers, adding that, currently, avoidance is advised.
But research is emerging from Canada, where medicinal and recreational marijuana use is legal.
Stigma around cannabis is still high. “Nobody wants to be seen as a ‘pot doctor’,” said Silvers. But after it became legal in Colorado in 2015, he was asked to give a talk and decided to speak up.
“I have never written a medical prescription for marijuana,” he said, explaining that he is involved with the Center for Bioethics and Humanities at the University of Colorado. “I try to take a societal as well as a medical perspective, looking at the value and concerns for abuse and misuse.”
“As it becomes more available, more legalized, patients are having more reactions,” he said. “Allergists need to get in the game.”
Attitudes need to change. Physicians and allergists need to understand what’s happening in the population “and be open-minded about it so they know what to do,” he added.
Patients Don’t Want to Be Told to Stop
Users of medical marijuana can become dependent, said Ellen Burnham, MD, also from the University of Colorado.
“Patients want a blessing from care providers that it’s okay to use,” she told Medscape Medical News. “We’re in a state where people are really interested in holistic approaches to health, and cannabis is a natural product, but it may exacerbate allergies.”
Some components of cannabis might have bronchodilator properties but there are so many unknowns at this time. “I don’t think allergists should be recommending or condoning cannabis as part of a patient’s therapy,” she said. “It’s not okay for everybody.”
As business flourishes for operators in the cannabis industry and for the legal profession, Burnham said she worries that there isn’t enough protection for workers. “Do workers exposed to plant material on a daily basis have adequate workplace protection,” such as masks and gowns? “There’s a downstream effect that impacts people that nobody has really thought about,” she pointed out.
If the cannabis industry becomes driven by money, with a lobby like the tobacco industry, there will be no way to keep people who are vulnerable from using cannabis.
Is an occasional joint, much like an occasional glass of wine, okay? “We don’t know,” said Burnham. “We just don’t have enough information about it.”
Research is needed to develop medicinal strains of cannabidiol, cannabigerol, and cannabinol, which offer “medicinal and anti-inflammatory relief without the psychologic affects,” Silvers added.
This article first appeared on Medscape.com.
“Cannabis sativa is a weed and it causes reactions just like any other pollen allergy,” said William Silvers, MD, from the University of Colorado School of Medicine in Aurora.
Silvers’ clinic began to see people with allergic reactions to the plant after the increase in direct exposure that accompanied the legalization of recreational marijuana in Colorado. For people with allergic tendencies, first- and second-hand exposure to C. sativa will increase “classic responses,” such as allergic rhinitis, sneezing, wheezing, itching, and asthma, he told Medscape Medical News.
Smoking the weed, direct exposure to the plant, contact with others who have touched plants, and breathing air in a grow operation “can all cause reactions,” he said. “And the more exposure they had, the greater the reaction, especially those who have allergic tendency,” he said.
The type of exposure to C. sativa is also a factor. Smoking the plant can induce typical allergic responses, the ingestion of hemp seed has been known to induce anaphylaxis, and “working with the plant can lead to dermatitis or contact urticaria,” he explained.
Edibles made with C. sativa have led to overdoses because dosing is difficult to determine. “It takes an hour or so to have an effect, so you don›t have as much control as inhaling it,” Silvers explained.
Stoned Fruit, Stoned Patient
A 2018 case report describes a 24-year-old daily marijuana smoker who experienced anaphylaxis after ingesting hemp seed. He had a history of allergies to stoned fruits, nuts, crustaceans, and aeroallergens. It was his first known exposure to hemp seed.
The patient developed urticaria on his arms after contact with C. sativa leaves and flowers, but had no reaction when smoking marijuana. This case indicates how important mode of exposure is.
“There are only a few cases of anaphylaxis known from ingestion of hemp seed,” Silvers said, “but the ‘stoned fruit, stoned patients’ cross-reactivity looks to be a real thing.”
People allergic to ragweed and sage are more likely than others to have a reaction to cantaloupe and other fruits in the melon family, he explained. There is a common antigen in the C. sativa pollen and in certain foods with cross-reacting proteins, such as tomato, peach, and hazelnut. “We see a pollen and food cross-reactivity via nonspecific lipid transfer proteins.”
A 2017 review of C. sativa allergy points out that few reports of IgE-dependent allergic reactions have been published because of the illegal status of cannabis. However, it is becoming more prevalent as a potential allergen. For example, in Nebraska, C. sativa pollen accounts for 36% of the total pollen count.
People with IgE-mediated cannabis allergy can have a sensitization to the nonspecific lipid transfer protein of C. sativa, Can s 3, which might explain the secondary plant-derived food allergies seen in European patients with a cannabis allergy, according to the review. Can s 3 cross-reacts with various plant homologues.
“This is the sort of information that allergists need to have,” Silvers said.
Stigma Limits Discussion
The fact that federal law prohibits cannabis use in the United States has made research difficult.
A strain distributed by the University of Mississippi can be used for research, “but its potency is very low, at 5% or 7%,” Silvers explained. At medical marijuana dispensaries, the potency of the flower can be as high as 25%, and in other forms, the THC content can be above 80%.
The legal status makes cannabis allergy difficult to diagnose and impossible to treat. Immunotherapy is out of the question. “With federal illegality, we need to stay out of trouble in that regard,” said Silvers, adding that, currently, avoidance is advised.
But research is emerging from Canada, where medicinal and recreational marijuana use is legal.
Stigma around cannabis is still high. “Nobody wants to be seen as a ‘pot doctor’,” said Silvers. But after it became legal in Colorado in 2015, he was asked to give a talk and decided to speak up.
“I have never written a medical prescription for marijuana,” he said, explaining that he is involved with the Center for Bioethics and Humanities at the University of Colorado. “I try to take a societal as well as a medical perspective, looking at the value and concerns for abuse and misuse.”
“As it becomes more available, more legalized, patients are having more reactions,” he said. “Allergists need to get in the game.”
Attitudes need to change. Physicians and allergists need to understand what’s happening in the population “and be open-minded about it so they know what to do,” he added.
Patients Don’t Want to Be Told to Stop
Users of medical marijuana can become dependent, said Ellen Burnham, MD, also from the University of Colorado.
“Patients want a blessing from care providers that it’s okay to use,” she told Medscape Medical News. “We’re in a state where people are really interested in holistic approaches to health, and cannabis is a natural product, but it may exacerbate allergies.”
Some components of cannabis might have bronchodilator properties but there are so many unknowns at this time. “I don’t think allergists should be recommending or condoning cannabis as part of a patient’s therapy,” she said. “It’s not okay for everybody.”
As business flourishes for operators in the cannabis industry and for the legal profession, Burnham said she worries that there isn’t enough protection for workers. “Do workers exposed to plant material on a daily basis have adequate workplace protection,” such as masks and gowns? “There’s a downstream effect that impacts people that nobody has really thought about,” she pointed out.
If the cannabis industry becomes driven by money, with a lobby like the tobacco industry, there will be no way to keep people who are vulnerable from using cannabis.
Is an occasional joint, much like an occasional glass of wine, okay? “We don’t know,” said Burnham. “We just don’t have enough information about it.”
Research is needed to develop medicinal strains of cannabidiol, cannabigerol, and cannabinol, which offer “medicinal and anti-inflammatory relief without the psychologic affects,” Silvers added.
This article first appeared on Medscape.com.