COVID-19 transmission in group living environments and households

Abstract The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is currently the world’s largest public health concern. This study evaluated COVID-19 transmission risks in people in group living environments. A total of 4550 individual...

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Autores principales:	Tetsuya Akaishi, Shigeki Kushimoto, Yukio Katori, Shigeo Kure, Kaoru Igarashi, Shin Takayama, Michiaki Abe, Junichi Tanaka, Akiko Kikuchi, Ko Onodera, Tadashi Ishii
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/96a35f3b88a848ac94f59ad1a134fe01
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spelling	oai:doaj.org-article:96a35f3b88a848ac94f59ad1a134fe012021-12-02T18:24:53ZCOVID-19 transmission in group living environments and households10.1038/s41598-021-91220-42045-2322https://doaj.org/article/96a35f3b88a848ac94f59ad1a134fe012021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91220-4https://doaj.org/toc/2045-2322Abstract The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is currently the world’s largest public health concern. This study evaluated COVID-19 transmission risks in people in group living environments. A total of 4550 individuals with a history of recent contact with patients at different places (dormitory/home/outside the residences) and levels (close/lower-risk) were tested for SARS-CoV-2 viral RNA using a nasopharyngeal swab test between July 2020 and May 2021. The test-positive rate was highest in individuals who had contact in dormitories (27.5%), but the rates were largely different between dormitories with different infrastructural or lifestyle features and infection control measures among residents. With appropriate infection control measures, the secondary transmission risk in dormitories was adequately suppressed. The household transmission rate (12.6%) was as high as that of close contact outside the residences (11.3%) and accounted for > 60% of the current rate of COVID-19 transmission among non-adults. Household transmission rates synchronized to local epidemics with changed local capacity of quarantining infectious patients. In conclusion, a group living environment is a significant risk factor of secondary transmission. Appropriate infection control measures and quarantine of infectious residents will decrease the risk of secondary transmission in group living environments.Tetsuya AkaishiShigeki KushimotoYukio KatoriShigeo KureKaoru IgarashiShin TakayamaMichiaki AbeJunichi TanakaAkiko KikuchiKo OnoderaTadashi IshiiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tetsuya Akaishi Shigeki Kushimoto Yukio Katori Shigeo Kure Kaoru Igarashi Shin Takayama Michiaki Abe Junichi Tanaka Akiko Kikuchi Ko Onodera Tadashi Ishii COVID-19 transmission in group living environments and households
description	Abstract The coronavirus disease 2019 (COVID-19) pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is currently the world’s largest public health concern. This study evaluated COVID-19 transmission risks in people in group living environments. A total of 4550 individuals with a history of recent contact with patients at different places (dormitory/home/outside the residences) and levels (close/lower-risk) were tested for SARS-CoV-2 viral RNA using a nasopharyngeal swab test between July 2020 and May 2021. The test-positive rate was highest in individuals who had contact in dormitories (27.5%), but the rates were largely different between dormitories with different infrastructural or lifestyle features and infection control measures among residents. With appropriate infection control measures, the secondary transmission risk in dormitories was adequately suppressed. The household transmission rate (12.6%) was as high as that of close contact outside the residences (11.3%) and accounted for > 60% of the current rate of COVID-19 transmission among non-adults. Household transmission rates synchronized to local epidemics with changed local capacity of quarantining infectious patients. In conclusion, a group living environment is a significant risk factor of secondary transmission. Appropriate infection control measures and quarantine of infectious residents will decrease the risk of secondary transmission in group living environments.
format	article
author	Tetsuya Akaishi Shigeki Kushimoto Yukio Katori Shigeo Kure Kaoru Igarashi Shin Takayama Michiaki Abe Junichi Tanaka Akiko Kikuchi Ko Onodera Tadashi Ishii
author_facet	Tetsuya Akaishi Shigeki Kushimoto Yukio Katori Shigeo Kure Kaoru Igarashi Shin Takayama Michiaki Abe Junichi Tanaka Akiko Kikuchi Ko Onodera Tadashi Ishii
author_sort	Tetsuya Akaishi
title	COVID-19 transmission in group living environments and households
title_short	COVID-19 transmission in group living environments and households
title_full	COVID-19 transmission in group living environments and households
title_fullStr	COVID-19 transmission in group living environments and households
title_full_unstemmed	COVID-19 transmission in group living environments and households
title_sort	covid-19 transmission in group living environments and households
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/96a35f3b88a848ac94f59ad1a134fe01
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COVID-19 transmission in group living environments and households

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