A clustering epidemic of coronavirus disease 2019 in a county of Chenzhou city
LIU Wei1, ZHOU Hong1, CHEN Wei-hua1, HU Ya-meng1, HE De-biao2, HUANG Jun-xiao2, CHEN Bai-tang1, ZHENG Wen1, TAN Hui1
1. Chenzhou Municipal Center for Disease Control and Prevention, Chenzhou, Hunan 423000, China; 2. Yongxing County Center for Disease Control and Prevention, Yongxing, Hunan 423300, China
Abstract：Objective To conduct an epidemiological investigation and analysis of a clustering epidemic of coronavirus disease 2019 (COVID-19) so as to provide experience for preventing and controlling occurrence and spread of the similar epidemic. Methods Field epidemiological investigation method was used to describe and analyze source, occurrence and transmission process of the clustering epidemic. Real-time reverse transcription polymerase chain reaction (RT-PCR) assay was performed to detect nucleic acid of the 2019-nCoV from respiratory tract specimens collected. Results This clustering epidemic was caused by a case returning home after being infected with COVID-19 in Shenzhen, and subsequently he infected three family members, but the other two family members, his children, were uninfected. The other eighteen close contacts were not infected except the close family contacts infected. The source of the infection was traced to detection of close contacts. Conclusions COVID-19 is easily transmitted within the family, and its spread is mainly through close contact with people. Very early screening of close contacts and detection of sources of mild cases are conducive to preventing COVID-19 spread and epidemic.
刘卫, 周虹, 陈伟华, 胡雅梦, 何德彪, 黄军校, 陈柏塘, 郑文, 谭徽. 郴州市某县一起新型冠状病毒肺炎聚集性疫情的调查[J]. 实用预防医学, 2020, 27(5): 521-523.
LIU Wei, ZHOU Hong, CHEN Wei-hua, HU Ya-meng, HE De-biao, HUANG Jun-xiao, CHEN Bai-tang, ZHENG Wen, TAN Hui. A clustering epidemic of coronavirus disease 2019 in a county of Chenzhou city. , 2020, 27(5): 521-523.
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2020, Vol. 27 
