The Effects of Temperature and Relative Humidity on the Viability of the SARS Coronavirus
Identifieur interne : 002031 ( Main/Exploration ); précédent : 002030; suivant : 002032The Effects of Temperature and Relative Humidity on the Viability of the SARS Coronavirus
Auteurs : K. H. Chan [Hong Kong] ; J. S. Malik Peiris [Hong Kong] ; S. Y. Lam [Hong Kong] ; L. L. M. Poon [Hong Kong] ; K. Y. Yuen [Hong Kong] ; W. H. Seto [Hong Kong]Source :
- Advances in Virology [ 1687-8639 ] ; 2011.
Abstract
The main route of transmission of SARS CoV infection is presumed to be respiratory droplets. However the virus is also detectable in other body fluids and excreta. The stability of the virus at different temperatures and relative humidity on smooth surfaces were studied. The dried virus on smooth surfaces retained its viability for over 5 days at temperatures of 22–25°C and relative humidity of 40–50%, that is, typical air-conditioned environments. However, virus viability was rapidly lost (>3 log10) at higher temperatures and higher relative humidity (e.g., 38°C, and relative humidity of >95%). The better stability of SARS coronavirus at low temperature and low humidity environment may facilitate its transmission in community in subtropical area (such as Hong Kong) during the spring and in air-conditioned environments. It may also explain why some Asian countries in tropical area (such as Malaysia, Indonesia or Thailand) with high temperature and high relative humidity environment did not have major community outbreaks of SARS.
Url:
DOI: 10.1155/2011/734690
PubMed: 22312351
PubMed Central: 3265313
Affiliations:
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H." last="Chan">K. H. Chan</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong</nlm:aff><country xml:lang="fr">Hong Kong</country><wicri:regionArea>Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam</wicri:regionArea><wicri:noRegion>Pokfulam</wicri:noRegion></affiliation></author><author><name sortKey="Peiris, J S Malik" sort="Peiris, J S Malik" uniqKey="Peiris J" first="J. S. Malik" last="Peiris">J. S. Malik Peiris</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong</nlm:aff><country xml:lang="fr">Hong Kong</country><wicri:regionArea>Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam</wicri:regionArea><wicri:noRegion>Pokfulam</wicri:noRegion></affiliation></author><author><name sortKey="Lam, S Y" sort="Lam, S Y" uniqKey="Lam S" first="S. Y." last="Lam">S. Y. Lam</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong</nlm:aff><country xml:lang="fr">Hong Kong</country><wicri:regionArea>Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam</wicri:regionArea><wicri:noRegion>Pokfulam</wicri:noRegion></affiliation></author><author><name sortKey="Poon, L L M" sort="Poon, L L M" uniqKey="Poon L" first="L. L. M." last="Poon">L. L. M. Poon</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong</nlm:aff><country xml:lang="fr">Hong Kong</country><wicri:regionArea>Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam</wicri:regionArea><wicri:noRegion>Pokfulam</wicri:noRegion></affiliation></author><author><name sortKey="Yuen, K Y" sort="Yuen, K Y" uniqKey="Yuen K" first="K. Y." last="Yuen">K. Y. Yuen</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong</nlm:aff><country xml:lang="fr">Hong Kong</country><wicri:regionArea>Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam</wicri:regionArea><wicri:noRegion>Pokfulam</wicri:noRegion></affiliation></author><author><name sortKey="Seto, W H" sort="Seto, W H" uniqKey="Seto W" first="W. H." last="Seto">W. H. Seto</name><affiliation wicri:level="1"><nlm:aff id="I1">Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam, Hong Kong</nlm:aff><country xml:lang="fr">Hong Kong</country><wicri:regionArea>Department of Microbiology, The University of Hong Kong, Queen Mary Hospital, Pokfulam</wicri:regionArea><wicri:noRegion>Pokfulam</wicri:noRegion></affiliation></author></analytic><series><title level="j">Advances in Virology</title><idno type="ISSN">1687-8639</idno><idno type="eISSN">1687-8647</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>The main route of transmission of SARS CoV infection is presumed to be respiratory droplets. However the virus is also detectable in other body fluids and excreta. The stability of the virus at different temperatures and relative humidity on smooth surfaces were studied. The dried virus on smooth surfaces retained its viability for over 5 days at temperatures of 22–25°C and relative humidity of 40–50%, that is, typical air-conditioned environments. However, virus viability was rapidly lost (>3 log<sub>10</sub>) at higher temperatures and higher relative humidity (e.g., 38°C, and relative humidity of >95%). The better stability of SARS coronavirus at low temperature and low humidity environment may facilitate its transmission in community in subtropical area (such as Hong Kong) during the spring and in air-conditioned environments. It may also explain why some Asian countries in tropical area (such as Malaysia, Indonesia or Thailand) with high temperature and high relative humidity environment did not have major community outbreaks of SARS.</p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Peiris, Jsm" uniqKey="Peiris J">JSM Peiris</name></author><author><name sortKey="Lai, St" uniqKey="Lai S">ST Lai</name></author><author><name sortKey="Poon, Llm" uniqKey="Poon L">LLM Poon</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Ksiazek, Tg" uniqKey="Ksiazek T">TG Ksiazek</name></author><author><name sortKey="Erdman, D" uniqKey="Erdman D">D Erdman</name></author><author><name sortKey="Goldsmith, Cs" uniqKey="Goldsmith C">CS Goldsmith</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Drosten, C" uniqKey="Drosten C">C Drosten</name></author><author><name sortKey="Gunther, S" uniqKey="Gunther S">S 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H." last="Chan">K. H. Chan</name></noRegion><name sortKey="Lam, S Y" sort="Lam, S Y" uniqKey="Lam S" first="S. Y." last="Lam">S. Y. Lam</name><name sortKey="Peiris, J S Malik" sort="Peiris, J S Malik" uniqKey="Peiris J" first="J. S. Malik" last="Peiris">J. S. Malik Peiris</name><name sortKey="Poon, L L M" sort="Poon, L L M" uniqKey="Poon L" first="L. L. M." last="Poon">L. L. M. Poon</name><name sortKey="Seto, W H" sort="Seto, W H" uniqKey="Seto W" first="W. H." last="Seto">W. H. Seto</name><name sortKey="Yuen, K Y" sort="Yuen, K Y" uniqKey="Yuen K" first="K. Y." last="Yuen">K. Y. Yuen</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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