Natural Ventilation for the Prevention of Airborne Contagion

A. Roderick Escombe; Clarissa C Oeser; Robert H Gilman; Marcos Navincopa; Eduardo Ticona; William Pan; Carlos Martínez; Jesus Chacaltana; Richard Rodríguez; David A. J Moore; Jon S Friedland; Carlton A Evans

doi:10.1371/journal.pmed.0040068

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Open Access

Peer-reviewed

Research Article

Natural Ventilation for the Prevention of Airborne Contagion

A. Roderick Escombe ,

*To whom correspondence should be addressed. E-mail: rod.escombe@imperial.ac.uk

Affiliations Department of Infectious Diseases & Immunity, Imperial College London, London, United Kingdom , Wellcome Trust Centre for Clinical Tropical Medicine, Imperial College London, London, United Kingdom , Asociación Benéfica PRISMA, Lima, Perú
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Clarissa C Oeser,

Affiliation Asociación Benéfica PRISMA, Lima, Perú
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Robert H Gilman,

Affiliations Asociación Benéfica PRISMA, Lima, Perú, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
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Marcos Navincopa,

Affiliation Hospital Nacional Dos de Mayo, Lima, Perú
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Eduardo Ticona,

Affiliation Hospital Nacional Dos de Mayo, Lima, Perú
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William Pan,

Affiliation Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
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Carlos Martínez,

Affiliation Hospital Nacional Dos de Mayo, Lima, Perú
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Jesus Chacaltana,

Affiliation Hospital Nacional Daniel Carrión, Lima, Perú
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Richard Rodríguez,

Affiliation Hospital de Apoyo Maria Auxiliadora, Lima, Perú
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David A. J Moore,

Affiliations Department of Infectious Diseases & Immunity, Imperial College London, London, United Kingdom , Wellcome Trust Centre for Clinical Tropical Medicine, Imperial College London, London, United Kingdom , Asociación Benéfica PRISMA, Lima, Perú
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Jon S Friedland,

Affiliations Department of Infectious Diseases & Immunity, Imperial College London, London, United Kingdom , Wellcome Trust Centre for Clinical Tropical Medicine, Imperial College London, London, United Kingdom
⨯
Carlton A Evans

Affiliations Department of Infectious Diseases & Immunity, Imperial College London, London, United Kingdom , Wellcome Trust Centre for Clinical Tropical Medicine, Imperial College London, London, United Kingdom , Asociación Benéfica PRISMA, Lima, Perú, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America
⨯

Natural Ventilation for the Prevention of Airborne Contagion

A. Roderick Escombe,
Clarissa C Oeser,
Robert H Gilman,
Marcos Navincopa,
Eduardo Ticona,
William Pan,
Carlos Martínez,
Jesus Chacaltana,
Richard Rodríguez,
David A. J Moore

Published: February 27, 2007
https://doi.org/10.1371/journal.pmed.0040068

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Another disadvantage of natural ventilation

Posted by hlevin on 25 Apr 2012 at 07:02 GMT

A disadvantage of natural ventilation is the difficulty in controlling direction of airflow due to the absence of negative pressure.
http://plosmedicine.org/article/info:doi/10.1371/journal.pmed.0040068#article1.body1.sec4.p6

Especially in large cities in resource poor contexts, outdoor air quality is very poor. The highest levels of ozone and of PM2.5 and PM10 are reported by the World Health Organization as being in the large cities throughout the developing world. Increasing outdoor air ventilation rates means creating an indoor air atmosphere that is as contaminated as the outdoor air and may compromise the immune response of patients already at risk.

No competing interests declared.

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Natural Ventilation for the Prevention of Airborne Contagion

Natural Ventilation for the Prevention of Airborne Contagion

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Another disadvantage of natural ventilation

Posted by hlevin on 25 Apr 2012 at 07:02 GMT