About: Evidence for probable aerosol transmission of SARS-CoV-2 in a poorly ventilated restaurant

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About: Evidence for probable aerosol transmission of SARS-CoV-2 in a poorly ventilated restaurant Goto Sponge NotDistinct Permalink

An Entity of Type : schema:ScholarlyArticle, within Data Space : covidontheweb.inria.fr associated with source document(s)

Attributes	Values
type	Academic Article research paper schema:ScholarlyArticle
isDefinedBy	Covid-on-the-Web dataset
has title	Evidence for probable aerosol transmission of SARS-CoV-2 in a poorly ventilated restaurant
Creator	Li, Yuguo Qian, Hua Wei, Jianjian Kang, Min Xiao, Shenglan Hang, Jian Li, Jiansen Kang, Liang, Peng Ling, Hong Li, Liu Tibetan, Ganzi Chen, Xuguang Field, Guangdong Mr, Min Program, Epidemiology
Source	MedRxiv
abstract	Background: The role of aerosols in the transmission of SARS-CoV-2 remains debated. We analysed an outbreak involving three non-associated families in Restaurant X in Guangzhou, China, and assessed the possibility of aerosol transmission of SARS-CoV-2 and characterize the associated environmental conditions. Methods: We collected epidemiological data, obtained a video record and a patron seating-arrangement from the restaurant, and measured the dispersion of a warm tracer gas as a surrogate for exhaled droplets from the suspected index patient. Computer simulations were performed to simulate the spread of fine exhaled droplets. We compared the in-room location of subsequently infected cases and spread of the simulated virus-laden aerosol tracer. The ventilation rate was measured using the tracer decay method. Results: Three families (A, B, C), 10 members of which were subsequently found to have been infected with SARS-CoV-2 at this time, or previously, ate lunch at Restaurant X on Chinese New Year's Eve (January 24, 2020) at three neighboring tables. Subsequently, three members of family B and two members of family C became infected with SARS-CoV-2, whereas none of the waiters or 68 patrons at the remaining 15 tables became infected. During this occasion, the ventilation rate was 0.75-1.04 L/s per person. No close contact or fomite contact was observed, aside from back-to-back sitting by some patrons. Our results show that the infection distribution is consistent with a spread pattern representative of exhaled virus-laden aerosols. Conclusions: Aerosol transmission of SARS-CoV-2 due to poor ventilation may explain the community spread of COVID-19.
has issue date	2020-04-22(xsd:dateTime)
bibo:doi	10.1101/2020.04.16.20067728
has license	medrxiv
sha1sum (hex)	cb68c8658bb181bb7e84f6a34145b3a95c22361a
schema:url	https://doi.org/10.1101/2020.04.16.20067728
resource representing a document's title	Evidence for probable aerosol transmission of SARS-CoV-2 in a poorly ventilated restaurant
resource representing a document's body	covid:cb68c8658bb181bb7e84f6a34145b3a95c22361a#body_text
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