Multi‐zone modeling of probable SARS virus transmission by airflow between flats in Block E, Amoy Gardens
Identifieur interne : 000291 ( Istex/Curation ); précédent : 000290; suivant : 000292Multi‐zone modeling of probable SARS virus transmission by airflow between flats in Block E, Amoy Gardens
Auteurs : Y. Li [République populaire de Chine] ; S. Duan [République populaire de Chine] ; I. T. S. Yu [République populaire de Chine] ; T. W. Wong [République populaire de Chine]Source :
- Indoor Air [ 0905-6947 ] ; 2005-04.
Abstract
Abstract More than 300 residents of a private high‐rise housing estate were infected with severe acute respiratory syndrome within a short period during the 2003 epidemic in Hong Kong. The outbreak occurred after the identified index patient visited a flat on a middle floor in Block E of the Amoy Gardens estate on two nights. Approximately 45% of the subsequently infected people resided in Block E, while the other 55% of infected cases mainly resided in six other blocks close to Block E. The distribution of the infected flats in Block E conformed to a non‐uniform spatial pattern. Probable environmental causes for airborne transmission associated with the air movements between flats in Block E are identified. The well‐established multi‐zone airflow modeling method was used to analyze the virus‐laden bio‐aerosol dispersion between flats through door and window leakage areas in Block E under six different scenarios. The distribution of infection risk in Block E matched with the virus concentrations in flats predicted with the use of multi‐zone modeling. Our study shows the importance of ventilation design in high‐rise residential apartments.
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DOI: 10.1111/j.1600-0668.2004.00318.x
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Duan</name><affiliation wicri:level="1"><mods:affiliation>Department of Environment Engineering, Southwest University of Science and Technology, Mianyang City, Sichuan Province 621002, China</mods:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Environment Engineering, Southwest University of Science and Technology, Mianyang City, Sichuan Province 621002</wicri:regionArea></affiliation></author><author><name sortKey="Yu, I T S" sort="Yu, I T S" uniqKey="Yu I" first="I. T. S." last="Yu">I. T. S. Yu</name><affiliation wicri:level="1"><mods:affiliation>Department of Community and Family Medicine, Chinese University of Hong Kong, Hong Kong SAR, China</mods:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Community and Family Medicine, Chinese University of Hong Kong, Hong Kong SAR</wicri:regionArea></affiliation></author><author><name sortKey="Wong, T W" sort="Wong, T W" uniqKey="Wong T" first="T. W." last="Wong">T. W. Wong</name><affiliation wicri:level="1"><mods:affiliation>Department of Community and Family Medicine, Chinese University of Hong Kong, Hong Kong SAR, China</mods:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Community and Family Medicine, Chinese University of Hong Kong, Hong Kong SAR</wicri:regionArea></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:F54A4C56642003732F97EC8BF6C613506F2B72C2</idno><date when="2005" year="2005">2005</date><idno type="doi">10.1111/j.1600-0668.2004.00318.x</idno><idno type="url">https://api.istex.fr/ark:/67375/WNG-JSJF1KJ4-W/fulltext.pdf</idno><idno type="wicri:Area/Istex/Corpus">000291</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000291</idno><idno type="wicri:Area/Istex/Curation">000291</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main">Multi‐zone modeling of probable SARS virus transmission by airflow between flats in Block E, Amoy Gardens</title><author><name sortKey="Li, Y" sort="Li, Y" uniqKey="Li Y" first="Y." last="Li">Y. Li</name><affiliation wicri:level="1"><mods:affiliation>Department of Mechanical Engineering, University of Hong Kong, Hong Kong SAR, China</mods:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Mechanical Engineering, University of Hong Kong, Hong Kong SAR</wicri:regionArea></affiliation></author><author><name sortKey="Duan, S" sort="Duan, S" uniqKey="Duan S" first="S." last="Duan">S. Duan</name><affiliation wicri:level="1"><mods:affiliation>Department of Environment Engineering, Southwest University of Science and Technology, Mianyang City, Sichuan Province 621002, China</mods:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Environment Engineering, Southwest University of Science and Technology, Mianyang City, Sichuan Province 621002</wicri:regionArea></affiliation></author><author><name sortKey="Yu, I T S" sort="Yu, I T S" uniqKey="Yu I" first="I. T. S." last="Yu">I. T. S. Yu</name><affiliation wicri:level="1"><mods:affiliation>Department of Community and Family Medicine, Chinese University of Hong Kong, Hong Kong SAR, China</mods:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Community and Family Medicine, Chinese University of Hong Kong, Hong Kong SAR</wicri:regionArea></affiliation></author><author><name sortKey="Wong, T W" sort="Wong, T W" uniqKey="Wong T" first="T. W." last="Wong">T. W. Wong</name><affiliation wicri:level="1"><mods:affiliation>Department of Community and Family Medicine, Chinese University of Hong Kong, Hong Kong SAR, China</mods:affiliation><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Community and Family Medicine, Chinese University of Hong Kong, Hong Kong SAR</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Indoor Air</title><title level="j" type="alt">INDOOR AIR</title><idno type="ISSN">0905-6947</idno><idno type="eISSN">1600-0668</idno><imprint><biblScope unit="vol">15</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="96">96</biblScope><biblScope unit="page" to="111">111</biblScope><biblScope unit="page-count">16</biblScope><publisher>Munksgaard International Publishers</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2005-04">2005-04</date></imprint><idno type="ISSN">0905-6947</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0905-6947</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract More than 300 residents of a private high‐rise housing estate were infected with severe acute respiratory syndrome within a short period during the 2003 epidemic in Hong Kong. The outbreak occurred after the identified index patient visited a flat on a middle floor in Block E of the Amoy Gardens estate on two nights. Approximately 45% of the subsequently infected people resided in Block E, while the other 55% of infected cases mainly resided in six other blocks close to Block E. The distribution of the infected flats in Block E conformed to a non‐uniform spatial pattern. Probable environmental causes for airborne transmission associated with the air movements between flats in Block E are identified. The well‐established multi‐zone airflow modeling method was used to analyze the virus‐laden bio‐aerosol dispersion between flats through door and window leakage areas in Block E under six different scenarios. The distribution of infection risk in Block E matched with the virus concentrations in flats predicted with the use of multi‐zone modeling. Our study shows the importance of ventilation design in high‐rise residential apartments.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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