Evidence of Long-Distance Droplet Transmission of SARS-CoV-2 by Direct Air Flow in a Restaurant in Korea.
Identifieur interne : 000162 ( Main/Exploration ); précédent : 000161; suivant : 000163Evidence of Long-Distance Droplet Transmission of SARS-CoV-2 by Direct Air Flow in a Restaurant in Korea.
Auteurs : Keun Sang Kwon [Corée du Sud] ; Jung Im Park [Corée du Sud] ; Young Joon Park [Corée du Sud] ; Don Myung Jung [Corée du Sud] ; Ki Wahn Ryu [Corée du Sud] ; Ju Hyung Lee [Corée du Sud]Source :
- Journal of Korean medical science [ 1598-6357 ] ; 2020.
Abstract
BACKGROUND
The transmission mode of severe acute respiratory syndrome coronavirus 2 is primarily known as droplet transmission. However, a recent argument has emerged about the possibility of airborne transmission. On June 17, there was a coronavirus disease 2019 (COVID-19) outbreak in Korea associated with long distance droplet transmission.
METHODS
The epidemiological investigation was implemented based on personal interviews and data collection on closed-circuit television images, and cell phone location data. The epidemic investigation support system developed by the Korea Disease Control and Prevention Agency was used for contact tracing. At the restaurant considered the site of exposure, air flow direction and velocity, distances between cases, and movement of visitors were investigated.
RESULTS
A total of 3 cases were identified in this outbreak, and maximum air flow velocity of 1.2 m/s was measured between the infector and infectee in a restaurant equipped with ceiling-type air conditioners. The index case was infected at a 6.5 m away from the infector and 5 minutes exposure without any direct or indirect contact.
CONCLUSION
Droplet transmission can occur at a distance greater than 2 m if there is direct air flow from an infected person. Therefore, updated guidelines involving prevention, contact tracing, and quarantine for COVID-19 are required for control of this highly contagious disease.
DOI: 10.3346/jkms.2020.35.e415
PubMed: 33258335
PubMed Central: PMC7707926
Affiliations:
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School, Jeonju, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Department of Preventive Medicine, Jeonbuk National University Medical School, Jeonju</wicri:regionArea><wicri:noRegion>Jeonju</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:affiliation>Jeonbuk Center for Infectious Disease Control and Prevention, Jeonju, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Jeonbuk Center for Infectious Disease Control and Prevention, Jeonju</wicri:regionArea><wicri:noRegion>Jeonju</wicri:noRegion></affiliation></author><author><name sortKey="Park, Jung Im" sort="Park, Jung Im" uniqKey="Park J" first="Jung Im" last="Park">Jung Im Park</name><affiliation wicri:level="1"><nlm:affiliation>Jeonbuk Center for Infectious Disease Control and Prevention, Jeonju, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Jeonbuk Center for Infectious Disease Control and Prevention, Jeonju</wicri:regionArea><wicri:noRegion>Jeonju</wicri:noRegion></affiliation></author><author><name sortKey="Park, Young Joon" sort="Park, Young Joon" uniqKey="Park Y" first="Young Joon" last="Park">Young Joon Park</name><affiliation wicri:level="1"><nlm:affiliation>Korea Disease Control and Prevention Agency, Cheongju, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Korea Disease Control and Prevention Agency, Cheongju</wicri:regionArea><wicri:noRegion>Cheongju</wicri:noRegion></affiliation></author><author><name sortKey="Jung, Don Myung" sort="Jung, Don Myung" uniqKey="Jung D" first="Don Myung" last="Jung">Don Myung Jung</name><affiliation wicri:level="1"><nlm:affiliation>Division of Health Care, Jeonbuk Provincial Government, Jeonju, Korea.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Division of Health Care, Jeonbuk Provincial Government, 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National University Medical School, Jeonju</wicri:regionArea><wicri:noRegion>Jeonju</wicri:noRegion></affiliation><affiliation wicri:level="1"><nlm:affiliation>Jeonbuk Center for Infectious Disease Control and Prevention, Jeonju, Korea. premd77@jbnu.ac.kr.</nlm:affiliation><country xml:lang="fr">Corée du Sud</country><wicri:regionArea>Jeonbuk Center for Infectious Disease Control and Prevention, Jeonju</wicri:regionArea><wicri:noRegion>Jeonju</wicri:noRegion></affiliation></author></analytic><series><title level="j">Journal of Korean medical science</title><idno type="eISSN">1598-6357</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p><b>BACKGROUND</b></p><p>The transmission mode of severe acute respiratory syndrome coronavirus 2 is primarily known as droplet transmission. However, a recent argument has emerged about the possibility of airborne transmission. On June 17, there was a coronavirus disease 2019 (COVID-19) outbreak in Korea associated with long distance droplet transmission.</p></div><div type="abstract" xml:lang="en"><p><b>METHODS</b></p><p>The epidemiological investigation was implemented based on personal interviews and data collection on closed-circuit television images, and cell phone location data. The epidemic investigation support system developed by the Korea Disease Control and Prevention Agency was used for contact tracing. At the restaurant considered the site of exposure, air flow direction and velocity, distances between cases, and movement of visitors were investigated.</p></div><div type="abstract" xml:lang="en"><p><b>RESULTS</b></p><p>A total of 3 cases were identified in this outbreak, and maximum air flow velocity of 1.2 m/s was measured between the infector and infectee in a restaurant equipped with ceiling-type air conditioners. The index case was infected at a 6.5 m away from the infector and 5 minutes exposure without any direct or indirect contact.</p></div><div type="abstract" xml:lang="en"><p><b>CONCLUSION</b></p><p>Droplet transmission can occur at a distance greater than 2 m if there is direct air flow from an infected person. Therefore, updated guidelines involving prevention, contact tracing, and quarantine for COVID-19 are required for control of this highly contagious disease.</p></div></front></TEI><pubmed><MedlineCitation Status="In-Process" Owner="NLM"><PMID Version="1">33258335</PMID><DateRevised><Year>2020</Year><Month>12</Month><Day>09</Day></DateRevised><Article PubModel="Electronic"><Journal><ISSN IssnType="Electronic">1598-6357</ISSN><JournalIssue CitedMedium="Internet"><Volume>35</Volume><Issue>46</Issue><PubDate><Year>2020</Year><Month>Nov</Month><Day>30</Day></PubDate></JournalIssue><Title>Journal of Korean medical science</Title><ISOAbbreviation>J Korean Med Sci</ISOAbbreviation></Journal><ArticleTitle>Evidence of Long-Distance Droplet Transmission of SARS-CoV-2 by Direct Air Flow in a Restaurant in Korea.</ArticleTitle><Pagination><MedlinePgn>e415</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.3346/jkms.2020.35.e415</ELocationID><Abstract><AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">The transmission mode of severe acute respiratory syndrome coronavirus 2 is primarily known as droplet transmission. However, a recent argument has emerged about the possibility of airborne transmission. On June 17, there was a coronavirus disease 2019 (COVID-19) outbreak in Korea associated with long distance droplet transmission.</AbstractText><AbstractText Label="METHODS" NlmCategory="METHODS">The epidemiological investigation was implemented based on personal interviews and data collection on closed-circuit television images, and cell phone location data. The epidemic investigation support system developed by the Korea Disease Control and Prevention Agency was used for contact tracing. At the restaurant considered the site of exposure, air flow direction and velocity, distances between cases, and movement of visitors were investigated.</AbstractText><AbstractText Label="RESULTS" NlmCategory="RESULTS">A total of 3 cases were identified in this outbreak, and maximum air flow velocity of 1.2 m/s was measured between the infector and infectee in a restaurant equipped with ceiling-type air conditioners. The index case was infected at a 6.5 m away from the infector and 5 minutes exposure without any direct or indirect contact.</AbstractText><AbstractText Label="CONCLUSION" NlmCategory="CONCLUSIONS">Droplet transmission can occur at a distance greater than 2 m if there is direct air flow from an infected person. 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Source="ORCID">https://orcid.org/0000-0002-7831-3694</Identifier><AffiliationInfo><Affiliation>Jeonbuk Center for Infectious Disease Control and Prevention, Jeonju, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Park</LastName><ForeName>Young Joon</ForeName><Initials>YJ</Initials><Identifier Source="ORCID">https://orcid.org/0000-0002-5971-7829</Identifier><AffiliationInfo><Affiliation>Korea Disease Control and Prevention Agency, Cheongju, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Jung</LastName><ForeName>Don Myung</ForeName><Initials>DM</Initials><Identifier Source="ORCID">https://orcid.org/0000-0002-9301-1897</Identifier><AffiliationInfo><Affiliation>Division of Health Care, Jeonbuk Provincial Government, Jeonju, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ryu</LastName><ForeName>Ki Wahn</ForeName><Initials>KW</Initials><Identifier Source="ORCID">https://orcid.org/0000-0002-4575-4493</Identifier><AffiliationInfo><Affiliation>Department of Aerospace Engineering, College of Engineering, Jeonbuk National University, Jeonju, Korea.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lee</LastName><ForeName>Ju Hyung</ForeName><Initials>JH</Initials><Identifier Source="ORCID">https://orcid.org/0000-0003-2487-4098</Identifier><AffiliationInfo><Affiliation>Department of Preventive Medicine, Jeonbuk National University Medical School, Jeonju, Korea.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Jeonbuk Center for Infectious Disease Control and Prevention, Jeonju, Korea. premd77@jbnu.ac.kr.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2020</Year><Month>11</Month><Day>30</Day></ArticleDate></Article><MedlineJournalInfo><Country>Korea (South)</Country><MedlineTA>J Korean Med Sci</MedlineTA><NlmUniqueID>8703518</NlmUniqueID><ISSNLinking>1011-8934</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">COVID-19</Keyword><Keyword MajorTopicYN="N">Infectious Disease Transmission</Keyword><Keyword MajorTopicYN="N">SARS-CoV-2</Keyword></KeywordList><CoiStatement>The authors have no potential conflicts of interest to disclose.</CoiStatement></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2020</Year><Month>10</Month><Day>06</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2020</Year><Month>11</Month><Day>16</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2020</Year><Month>12</Month><Day>1</Day><Hour>6</Hour><Minute>6</Minute></PubMedPubDate><PubMedPubDate 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sortKey="Park, Jung Im" sort="Park, Jung Im" uniqKey="Park J" first="Jung Im" last="Park">Jung Im Park</name><name sortKey="Park, Young Joon" sort="Park, Young Joon" uniqKey="Park Y" first="Young Joon" last="Park">Young Joon Park</name><name sortKey="Ryu, Ki Wahn" sort="Ryu, Ki Wahn" uniqKey="Ryu K" first="Ki Wahn" last="Ryu">Ki Wahn Ryu</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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