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The role of community-wide wearing of face mask for control of coronavirus disease 2019 (COVID-19) epidemic due to SARS-CoV-2.

Identifieur interne : 000393 ( Main/Exploration ); précédent : 000392; suivant : 000394

The role of community-wide wearing of face mask for control of coronavirus disease 2019 (COVID-19) epidemic due to SARS-CoV-2.

Auteurs : Vincent Chi-Chung Cheng [République populaire de Chine] ; Shuk-Ching Wong [République populaire de Chine] ; Vivien Wai-Man Chuang [République populaire de Chine] ; Simon Yung-Chun So [République populaire de Chine] ; Jonathan Hon-Kwan Chen [République populaire de Chine] ; Siddharth Sridhar [République populaire de Chine] ; Kelvin Kai-Wang To [République populaire de Chine] ; Jasper Fuk-Woo Chan [République populaire de Chine] ; Ivan Fan-Ngai Hung [République populaire de Chine] ; Pak-Leung Ho [République populaire de Chine] ; Kwok-Yung Yuen [République populaire de Chine]

Source :

RBID : pubmed:32335167

Descripteurs français

English descriptors

Abstract

BACKGROUND

Face mask usage by the healthy population in the community to reduce risk of transmission of respiratory viruses remains controversial. We assessed the effect of community-wide mask usage to control coronavirus disease 2019 (COVID-19) in Hong Kong Special Administrative Region (HKSAR).

METHODS

Patients presenting with respiratory symptoms at outpatient clinics or hospital wards were screened for COVID-19 per protocol. Epidemiological analysis was performed for confirmed cases, especially persons acquiring COVID-19 during mask-off and mask-on settings. The incidence of COVID-19 per million population in HKSAR with community-wide masking was compared to that of non-mask-wearing countries which are comparable with HKSAR in terms of population density, healthcare system, BCG vaccination and social distancing measures but not community-wide masking. Compliance of face mask usage in the HKSAR community was monitored.

FINDINGS

Within first 100 days (31 December 2019 to 8 April 2020), 961 COVID-19 patients were diagnosed in HKSAR. The COVID-19 incidence in HKSAR (129.0 per million population) was significantly lower (p<0.001) than that of Spain (2983.2), Italy (2250.8), Germany (1241.5), France (1151.6), U.S. (1102.8), U.K. (831.5), Singapore (259.8), and South Korea (200.5). The compliance of face mask usage by HKSAR general public was 96.6% (range: 95.7% to 97.2%). We observed 11 COVID-19 clusters in recreational 'mask-off' settings compared to only 3 in workplace 'mask-on' settings (p = 0.036 by Chi square test of goodness-of-fit).

CONCLUSION

Community-wide mask wearing may contribute to the control of COVID-19 by reducing the amount of emission of infected saliva and respiratory droplets from individuals with subclinical or mild COVID-19.


DOI: 10.1016/j.jinf.2020.04.024
PubMed: 32335167
PubMed Central: PMC7177146


Affiliations:


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<p>
<b>BACKGROUND</b>
</p>
<p>Face mask usage by the healthy population in the community to reduce risk of transmission of respiratory viruses remains controversial. We assessed the effect of community-wide mask usage to control coronavirus disease 2019 (COVID-19) in Hong Kong Special Administrative Region (HKSAR).</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>METHODS</b>
</p>
<p>Patients presenting with respiratory symptoms at outpatient clinics or hospital wards were screened for COVID-19 per protocol. Epidemiological analysis was performed for confirmed cases, especially persons acquiring COVID-19 during mask-off and mask-on settings. The incidence of COVID-19 per million population in HKSAR with community-wide masking was compared to that of non-mask-wearing countries which are comparable with HKSAR in terms of population density, healthcare system, BCG vaccination and social distancing measures but not community-wide masking. Compliance of face mask usage in the HKSAR community was monitored.</p>
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<div type="abstract" xml:lang="en">
<p>
<b>FINDINGS</b>
</p>
<p>Within first 100 days (31 December 2019 to 8 April 2020), 961 COVID-19 patients were diagnosed in HKSAR. The COVID-19 incidence in HKSAR (129.0 per million population) was significantly lower (p<0.001) than that of Spain (2983.2), Italy (2250.8), Germany (1241.5), France (1151.6), U.S. (1102.8), U.K. (831.5), Singapore (259.8), and South Korea (200.5). The compliance of face mask usage by HKSAR general public was 96.6% (range: 95.7% to 97.2%). We observed 11 COVID-19 clusters in recreational 'mask-off' settings compared to only 3 in workplace 'mask-on' settings (p = 0.036 by Chi square test of goodness-of-fit).</p>
</div>
<div type="abstract" xml:lang="en">
<p>
<b>CONCLUSION</b>
</p>
<p>Community-wide mask wearing may contribute to the control of COVID-19 by reducing the amount of emission of infected saliva and respiratory droplets from individuals with subclinical or mild COVID-19.</p>
</div>
</front>
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<AbstractText Label="BACKGROUND">Face mask usage by the healthy population in the community to reduce risk of transmission of respiratory viruses remains controversial. We assessed the effect of community-wide mask usage to control coronavirus disease 2019 (COVID-19) in Hong Kong Special Administrative Region (HKSAR).</AbstractText>
<AbstractText Label="METHODS">Patients presenting with respiratory symptoms at outpatient clinics or hospital wards were screened for COVID-19 per protocol. Epidemiological analysis was performed for confirmed cases, especially persons acquiring COVID-19 during mask-off and mask-on settings. The incidence of COVID-19 per million population in HKSAR with community-wide masking was compared to that of non-mask-wearing countries which are comparable with HKSAR in terms of population density, healthcare system, BCG vaccination and social distancing measures but not community-wide masking. Compliance of face mask usage in the HKSAR community was monitored.</AbstractText>
<AbstractText Label="FINDINGS">Within first 100 days (31 December 2019 to 8 April 2020), 961 COVID-19 patients were diagnosed in HKSAR. The COVID-19 incidence in HKSAR (129.0 per million population) was significantly lower (p<0.001) than that of Spain (2983.2), Italy (2250.8), Germany (1241.5), France (1151.6), U.S. (1102.8), U.K. (831.5), Singapore (259.8), and South Korea (200.5). The compliance of face mask usage by HKSAR general public was 96.6% (range: 95.7% to 97.2%). We observed 11 COVID-19 clusters in recreational 'mask-off' settings compared to only 3 in workplace 'mask-on' settings (p = 0.036 by Chi square test of goodness-of-fit).</AbstractText>
<AbstractText Label="CONCLUSION">Community-wide mask wearing may contribute to the control of COVID-19 by reducing the amount of emission of infected saliva and respiratory droplets from individuals with subclinical or mild COVID-19.</AbstractText>
<CopyrightInformation>Copyright © 2020 The British Infection Association. Published by Elsevier Ltd. All rights reserved.</CopyrightInformation>
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<Affiliation>Department of Microbiology, Queen Mary Hospital, Hong Kong Special Administrative Region, China; Infection Control Team, Queen Mary Hospital, Hong Kong West Cluster, Hong Kong Special Administrative Region, China.</Affiliation>
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<Affiliation>Department of Microbiology, Queen Mary Hospital, Hong Kong Special Administrative Region, China.</Affiliation>
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<ArticleDate DateType="Electronic">
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<Day>23</Day>
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<Country>England</Country>
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<NlmUniqueID>7908424</NlmUniqueID>
<ISSNLinking>0163-4453</ISSNLinking>
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<SupplMeshName Type="Organism" UI="C000656484">severe acute respiratory syndrome coronavirus 2</SupplMeshName>
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<CommentsCorrections RefType="CommentIn">
<RefSource>J Infect. 2020 Sep;81(3):e51-e52</RefSource>
<PMID Version="1">32593657</PMID>
</CommentsCorrections>
<CommentsCorrections RefType="CommentIn">
<RefSource>J Infect. 2020 Sep;81(3):e1-e5</RefSource>
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</CommentsCorrections>
</CommentsCorrectionsList>
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<MeshHeading>
<DescriptorName UI="D000073640" MajorTopicYN="Y">Betacoronavirus</DescriptorName>
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<MeshHeading>
<DescriptorName UI="D018352" MajorTopicYN="N">Coronavirus Infections</DescriptorName>
<QualifierName UI="Q000517" MajorTopicYN="Y">prevention & control</QualifierName>
</MeshHeading>
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<DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D058873" MajorTopicYN="N">Pandemics</DescriptorName>
<QualifierName UI="Q000517" MajorTopicYN="Y">prevention & control</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D011024" MajorTopicYN="N">Pneumonia, Viral</DescriptorName>
<QualifierName UI="Q000517" MajorTopicYN="Y">prevention & control</QualifierName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D011481" MajorTopicYN="Y">Protective Clothing</DescriptorName>
</MeshHeading>
<MeshHeading>
<DescriptorName UI="D011634" MajorTopicYN="Y">Public Health</DescriptorName>
</MeshHeading>
</MeshHeadingList>
<KeywordList Owner="NOTNLM">
<Keyword MajorTopicYN="Y">COVID-19</Keyword>
<Keyword MajorTopicYN="Y">Community</Keyword>
<Keyword MajorTopicYN="Y">Coronavirus</Keyword>
<Keyword MajorTopicYN="Y">Epidemic</Keyword>
<Keyword MajorTopicYN="Y">Face mask</Keyword>
<Keyword MajorTopicYN="Y">SARS-COV-2</Keyword>
</KeywordList>
<CoiStatement>Declaration of Competing Interest All authors report no conflicts of interest relevant to this article.</CoiStatement>
</MedlineCitation>
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<Year>2020</Year>
<Month>04</Month>
<Day>16</Day>
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<PubMedPubDate PubStatus="accepted">
<Year>2020</Year>
<Month>04</Month>
<Day>17</Day>
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<Month>4</Month>
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<PublicationStatus>ppublish</PublicationStatus>
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<ArticleId IdType="pii">S0163-4453(20)30235-8</ArticleId>
<ArticleId IdType="doi">10.1016/j.jinf.2020.04.024</ArticleId>
<ArticleId IdType="pmc">PMC7177146</ArticleId>
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<country>
<li>République populaire de Chine</li>
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<name sortKey="Cheng, Vincent Chi Chung" sort="Cheng, Vincent Chi Chung" uniqKey="Cheng V" first="Vincent Chi-Chung" last="Cheng">Vincent Chi-Chung Cheng</name>
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<name sortKey="Chan, Jasper Fuk Woo" sort="Chan, Jasper Fuk Woo" uniqKey="Chan J" first="Jasper Fuk-Woo" last="Chan">Jasper Fuk-Woo Chan</name>
<name sortKey="Chen, Jonathan Hon Kwan" sort="Chen, Jonathan Hon Kwan" uniqKey="Chen J" first="Jonathan Hon-Kwan" last="Chen">Jonathan Hon-Kwan Chen</name>
<name sortKey="Chuang, Vivien Wai Man" sort="Chuang, Vivien Wai Man" uniqKey="Chuang V" first="Vivien Wai-Man" last="Chuang">Vivien Wai-Man Chuang</name>
<name sortKey="Ho, Pak Leung" sort="Ho, Pak Leung" uniqKey="Ho P" first="Pak-Leung" last="Ho">Pak-Leung Ho</name>
<name sortKey="Hung, Ivan Fan Ngai" sort="Hung, Ivan Fan Ngai" uniqKey="Hung I" first="Ivan Fan-Ngai" last="Hung">Ivan Fan-Ngai Hung</name>
<name sortKey="So, Simon Yung Chun" sort="So, Simon Yung Chun" uniqKey="So S" first="Simon Yung-Chun" last="So">Simon Yung-Chun So</name>
<name sortKey="Sridhar, Siddharth" sort="Sridhar, Siddharth" uniqKey="Sridhar S" first="Siddharth" last="Sridhar">Siddharth Sridhar</name>
<name sortKey="To, Kelvin Kai Wang" sort="To, Kelvin Kai Wang" uniqKey="To K" first="Kelvin Kai-Wang" last="To">Kelvin Kai-Wang To</name>
<name sortKey="Wong, Shuk Ching" sort="Wong, Shuk Ching" uniqKey="Wong S" first="Shuk-Ching" last="Wong">Shuk-Ching Wong</name>
<name sortKey="Yuen, Kwok Yung" sort="Yuen, Kwok Yung" uniqKey="Yuen K" first="Kwok-Yung" last="Yuen">Kwok-Yung Yuen</name>
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