Role of air distribution in SARS transmission during the largest nosocomial outbreak in Hong Kong
Identifieur interne : 004E28 ( Main/Merge ); précédent : 004E27; suivant : 004E29Role of air distribution in SARS transmission during the largest nosocomial outbreak in Hong Kong
Auteurs : Y. Li [République populaire de Chine] ; X. Huang [République populaire de Chine] ; I. T. S. Yu [République populaire de Chine] ; T. W. Wong [République populaire de Chine] ; H. Qian [République populaire de Chine]Source :
- Indoor Air [ 0905-6947 ] ; 2005-04.
Abstract
Abstract Severe acute respiratory syndrome (SARS) is primarily transmitted by bio‐aerosol droplets or direct personal contacts. This paper presents a detailed study of environmental evidence of possible airborne transmission in a hospital ward during the largest nosocomial SARS outbreak in Hong Kong in March 2003. Retrospective on‐site inspections and measurements of the ventilation design and air distribution system were carried out on July 17, 2003. Limited on‐site measurements of bio‐aerosol dispersion were also carried out on July 22. Computational fluid dynamics simulations were performed to analyze the bio‐aerosol dispersion in the hospital ward. We attempted to predict the air distribution during the time of measurement in July 2003 and the time of exposure in March 2003. The predicted bio‐aerosol concentration distribution in the ward seemed to agree fairly well with the spatial infection pattern of SARS cases. Possible improvement to air distribution in the hospital ward was also considered.
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DOI: 10.1111/j.1600-0668.2004.00317.x
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Li</name><affiliation wicri:level="1"><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Mechanical Engineering, the University of Hong Kong, Hong Kong SAR</wicri:regionArea><wicri:noRegion>Hong Kong SAR</wicri:noRegion></affiliation></author><author><name sortKey="Huang, X" sort="Huang, X" uniqKey="Huang X" first="X." last="Huang">X. Huang</name><affiliation wicri:level="1"><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>School of Mechanical and Power Engineering Shanghai Jiao Tong University, Shanghai</wicri:regionArea><wicri:noRegion>Shanghai</wicri:noRegion></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="4"><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><orgName type="university">Université chinoise de Hong Kong</orgName><placeName><settlement type="city">Sha Tin</settlement></placeName></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="4"><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><orgName type="university">Université chinoise de Hong Kong</orgName><placeName><settlement type="city">Sha Tin</settlement></placeName></affiliation></author><author><name sortKey="Qian, H" sort="Qian, H" uniqKey="Qian H" first="H." last="Qian">H. Qian</name><affiliation wicri:level="1"><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>Department of Mechanical Engineering, the University of Hong Kong, Hong Kong SAR</wicri:regionArea><wicri:noRegion>Hong Kong SAR</wicri:noRegion></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="83">83</biblScope><biblScope unit="page" to="95">95</biblScope><biblScope unit="page-count">13</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 Severe acute respiratory syndrome (SARS) is primarily transmitted by bio‐aerosol droplets or direct personal contacts. This paper presents a detailed study of environmental evidence of possible airborne transmission in a hospital ward during the largest nosocomial SARS outbreak in Hong Kong in March 2003. Retrospective on‐site inspections and measurements of the ventilation design and air distribution system were carried out on July 17, 2003. Limited on‐site measurements of bio‐aerosol dispersion were also carried out on July 22. Computational fluid dynamics simulations were performed to analyze the bio‐aerosol dispersion in the hospital ward. We attempted to predict the air distribution during the time of measurement in July 2003 and the time of exposure in March 2003. The predicted bio‐aerosol concentration distribution in the ward seemed to agree fairly well with the spatial infection pattern of SARS cases. Possible improvement to air distribution in the hospital ward was also considered.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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