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

作者：Shule Xu, Peiyi Liu, Shujiang Mei, Qiuying Lv, Cong Cheng, Yan Lu, Dongfeng Kong, Xiaoliang Wu, Ying Wen, Bin Cao, Gao ShiTong, Huawei Xiong, Jin Zhao, Yuanyuan Huang, Yijuan Luo, Tiejian Feng · 发表于：BMJ Open · 年份：2021 · DOI：10.1136/bmjopen-2020-044940 · 被引用次数：3 · 研究领域：COVID-19 epidemiological studies、COVID-19 Clinical Research Studies、COVID-19 Impact on Reproduction

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.