High attack rate in a Tong Lau house outbreak of COVID-19 with subdivided units in Hong Kong

doi:10.1098/rsfs.2021.0063

CORC > 数学与系统科学研究院 > 中国科学院数学与系统科学研究院 > 应用数学研究所

	High attack rate in a Tong Lau house outbreak of COVID-19 with subdivided units in Hong Kong
	Wang, Qun 9; Lung, David Christopher 7,8; Chan, Pak-To 9; Jia, Wei 9; Dung, Chung-Hin 9; Miao, Te 9; Huang, Jianxiang 10; Chen, Wenzhao 9; Wang, Zixuan 9; Leung, Kai-Ming 6
刊名	INTERFACE FOCUS
	2022-02-11
卷号	12 期号:2 页码:11
关键词	COVID-19 SARS-CoV-2 poor housing drainage system building ventilation
ISSN号	2042-8898
DOI	10.1098/rsfs.2021.0063
英文摘要	Poor housing conditions are known to be associated with infectious diseases such as high Coronavirus disease 2019 (COVID-19) incidences. Transmission causes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in poor housing conditions can be complex. An understanding of the exact mechanism of transmission can help to pinpoint contributing environmental issues. Here, we investigated a Hong Kong COVID-19 outbreak in early 2021 in four traditional Tong Lau houses with subdivided units. There are more than 80 subdivided units of less than 20 m(2) floor area each on average. With a total of 34 confirmed COVID-19 cases, the outbreak had an attack rate of 25.4%, being one of the highest attack rates observed in Hong Kong, and ranked among the highest attack rates in reported outbreaks internationally. Tracer gas leakage and decay measurements were performed in the drainage system and in the subdivided units to determine the transport of infectious aerosols by the owner-modified sophisticated wastewater drainage pipe networks and the poor ventilation conditions in some subdivided units. The results show that the outbreak was probably due to multiple transmission routes, i.e. by the drainage pipe spread of stack aerosols, which is enhanced by poor ventilation in the subdivided units.
资助项目	Research Grants Council of Hong Kong's Collaborative Research Fund ; Research Grants Council of Hong Kong's General Research Fund[17203321]
WOS研究方向	Life Sciences & Biomedicine - Other Topics
语种	英语
出版者	ROYAL SOC
WOS记录号	WOS:000753592800005
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/60056]
专题	应用数学研究所
通讯作者	Li, Yuguo
作者单位	1.Univ Hong Kong, Estates Off, Li Ka Shing Fac Med, Hong Kong, Peoples R China 2.Univ Hong Kong, Dept Microbiol, Li Ka Shing Fac Med, Hong Kong, Peoples R China 3.Queen Mary Hosp, Dept Microbiol, Hong Kong, Peoples R China 4.City Univ Hong Kong, Div Bldg Sci & Technol, Hong Kong, Peoples R China 5.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing, Peoples R China 6.Environm Protect Dept, Hong Kong, Peoples R China 7.Queen Elizabeth Hosp, Dept Pathol, Hong Kong, Peoples R China 8.Hong Kong Childrens Hosp, Dept Pathol, Hong Kong, Peoples R China 9.Univ Hong Kong, Dept Mech Engn, Fac Architecture, Hong Kong, Peoples R China 10.Univ Hong Kong, Dept Urban Planning & Design, Fac Architecture, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qun,Lung, David Christopher,Chan, Pak-To,et al. High attack rate in a Tong Lau house outbreak of COVID-19 with subdivided units in Hong Kong[J]. INTERFACE FOCUS,2022,12(2):11.
APA	Wang, Qun.,Lung, David Christopher.,Chan, Pak-To.,Jia, Wei.,Dung, Chung-Hin.,...&Li, Yuguo.(2022).High attack rate in a Tong Lau house outbreak of COVID-19 with subdivided units in Hong Kong.INTERFACE FOCUS,12(2),11.
MLA	Wang, Qun,et al."High attack rate in a Tong Lau house outbreak of COVID-19 with subdivided units in Hong Kong".INTERFACE FOCUS 12.2(2022):11.