Analysis of the comprehensive non-pharmaceutical interventions and measures in containing the COVID-19 epidemic in Shenzhen: a retrospective study

Yan Lu; Jin Zhao; Tiejian Feng; Xiaoliang Wu; Bin Cao; Cong Cheng; Ying Wen; Peiyi Liu; Yuanyuan Huang; Shule Xu; Shujiang Mei; Qiuying Lv; Dongfeng Kong; Shitong Gao; Huawei Xiong; Yijuan Luo

doi:10.1136/bmjopen-2020-044940

BMJ Open (Jul 2021)

Analysis of the comprehensive non-pharmaceutical interventions and measures in containing the COVID-19 epidemic in Shenzhen: a retrospective study

Yan Lu,
Jin Zhao,
Tiejian Feng,
Xiaoliang Wu,
Bin Cao,
Cong Cheng,
Ying Wen,
Peiyi Liu,
Yuanyuan Huang,
Shule Xu,
Shujiang Mei,
Qiuying Lv,
Dongfeng Kong,
Shitong Gao,
Huawei Xiong,
Yijuan Luo

Affiliations

Yan Lu: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Jin Zhao: Department of AIDS Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Tiejian Feng: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Xiaoliang Wu: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Bin Cao: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Cong Cheng: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Ying Wen: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Peiyi Liu: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Yuanyuan Huang: Department of School Health, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Shule Xu: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Shujiang Mei: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Qiuying Lv: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Dongfeng Kong: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Shitong Gao: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Huawei Xiong: Department of Communicable Disease Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China
Yijuan Luo: Department of AIDS Control and Prevention, Shenzhen Center for Disease Control and Prevention, Shenzhen, Guangdong, China

DOI: https://doi.org/10.1136/bmjopen-2020-044940
Journal volume & issue: Vol. 11, no. 7

Abstract

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Objective To analyse the epidemiological characteristics of family clusters of COVID-19 and the three stages of the comprehensive non-pharmaceutical interventions and measures implemented in Shenzhen.Methods The epidemic curve of COVID-19 was drawn and the impact of the comprehensive non-pharmaceutical interventions and measures was analysed by the different periods of the epidemic.Results A total of 427 cases (417 confirmed cases and 10 asymptomatic infectious cases) were reported in Shenzhen, of which 259 (60.7%) were clustered cases. 97 cluster events were drawn and most cluster events (97.3%) occurred in families. There were three stages of the COVID-19 epidemic in Shenzhen. The epidemic increased rapidly, but the peak lasted for a short time, while the decline in incidence was rapid and large.Conclusions Family clusters were the main feature of the COVID-19 outbreak in Shenzhen in 2020, and the Shenzhen government rolled out a quick response to the epidemic. Non-pharmaceutical interventions and measures were proven to have effectively contained community transmission, limit the transmission to aggregation and reduce the scale of transmission within a household.

Published in BMJ Open

ISSN: 2044-6055 (Online)
Publisher: BMJ Publishing Group
Country of publisher: United Kingdom
LCC subjects: Medicine
Website: https://bmjopen.bmj.com

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