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Identifying behavior of long-distance virus transmission and mitigation performance from a COVID-19 outbreak of a daycare center

During the last two years, hundreds of millions of people in the world have been infected with SARS-CoV-2 due to recurrent waves and closed spaces. Daycare centers are critical infrastructures that cannot be replaced, even during the COVID-19 period. However, the existing settings in daycare centers...

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Autores principales: Kim, Chul, Yu, Jungyeon, Lee, Yun Gyu, Kim, Jieun, Bae, Sanghwan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Authors. Published by Elsevier Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9022399/
https://www.ncbi.nlm.nih.gov/pubmed/35461843
http://dx.doi.org/10.1016/j.envres.2022.113318
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author Kim, Chul
Yu, Jungyeon
Lee, Yun Gyu
Kim, Jieun
Bae, Sanghwan
author_facet Kim, Chul
Yu, Jungyeon
Lee, Yun Gyu
Kim, Jieun
Bae, Sanghwan
author_sort Kim, Chul
collection PubMed
description During the last two years, hundreds of millions of people in the world have been infected with SARS-CoV-2 due to recurrent waves and closed spaces. Daycare centers are critical infrastructures that cannot be replaced, even during the COVID-19 period. However, the existing settings in daycare centers may pose risks of inevitable close contact between teachers and children, as well as fomite and airborne transmission during care hours. Therefore, reinforced mitigation strategies have been applied in daycare centers to reduce potential indoor virus transfer in many countries. However, numerous outbreaks of COVID-19 have been reported in daycare centers. Therefore, in this study, researchers focused on the risk and behavior of long-distance virus transmission based on the detected viruses on air purifier filter sampling in a daycare center outbreak in Korea. Various experiments of possible situations were conducted in nursing rooms based on field interviews. The experiments monitored the long-distance transmission behavior of aerosol-sized particles and visualized particle behavior at the daycare center. The results of this study revealed that long-distance virus transmission is possible under the current settings in the daycare center, and flush-out can be an important countermeasure with reinforced ventilation methods to prevent potential airborne spread in the daycare center. The results of air purifiers represented that air purifiers should be properly installed and operated in the daycare center to prevent airborne virus spread by airflow during occupied hours. The findings of this study will contribute to the understanding of airborne virus risk and the development of customized virus measures for daycare centers.
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spelling pubmed-90223992022-04-21 Identifying behavior of long-distance virus transmission and mitigation performance from a COVID-19 outbreak of a daycare center Kim, Chul Yu, Jungyeon Lee, Yun Gyu Kim, Jieun Bae, Sanghwan Environ Res Article During the last two years, hundreds of millions of people in the world have been infected with SARS-CoV-2 due to recurrent waves and closed spaces. Daycare centers are critical infrastructures that cannot be replaced, even during the COVID-19 period. However, the existing settings in daycare centers may pose risks of inevitable close contact between teachers and children, as well as fomite and airborne transmission during care hours. Therefore, reinforced mitigation strategies have been applied in daycare centers to reduce potential indoor virus transfer in many countries. However, numerous outbreaks of COVID-19 have been reported in daycare centers. Therefore, in this study, researchers focused on the risk and behavior of long-distance virus transmission based on the detected viruses on air purifier filter sampling in a daycare center outbreak in Korea. Various experiments of possible situations were conducted in nursing rooms based on field interviews. The experiments monitored the long-distance transmission behavior of aerosol-sized particles and visualized particle behavior at the daycare center. The results of this study revealed that long-distance virus transmission is possible under the current settings in the daycare center, and flush-out can be an important countermeasure with reinforced ventilation methods to prevent potential airborne spread in the daycare center. The results of air purifiers represented that air purifiers should be properly installed and operated in the daycare center to prevent airborne virus spread by airflow during occupied hours. The findings of this study will contribute to the understanding of airborne virus risk and the development of customized virus measures for daycare centers. The Authors. Published by Elsevier Inc. 2022-09 2022-04-21 /pmc/articles/PMC9022399/ /pubmed/35461843 http://dx.doi.org/10.1016/j.envres.2022.113318 Text en © 2022 The Authors Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.
spellingShingle Article
Kim, Chul
Yu, Jungyeon
Lee, Yun Gyu
Kim, Jieun
Bae, Sanghwan
Identifying behavior of long-distance virus transmission and mitigation performance from a COVID-19 outbreak of a daycare center
title Identifying behavior of long-distance virus transmission and mitigation performance from a COVID-19 outbreak of a daycare center
title_full Identifying behavior of long-distance virus transmission and mitigation performance from a COVID-19 outbreak of a daycare center
title_fullStr Identifying behavior of long-distance virus transmission and mitigation performance from a COVID-19 outbreak of a daycare center
title_full_unstemmed Identifying behavior of long-distance virus transmission and mitigation performance from a COVID-19 outbreak of a daycare center
title_short Identifying behavior of long-distance virus transmission and mitigation performance from a COVID-19 outbreak of a daycare center
title_sort identifying behavior of long-distance virus transmission and mitigation performance from a covid-19 outbreak of a daycare center
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9022399/
https://www.ncbi.nlm.nih.gov/pubmed/35461843
http://dx.doi.org/10.1016/j.envres.2022.113318
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