Typical case analysis of COVID-19 cluster epidemic in Shaanxi, 2020
10.3760/cma.j.cn112338-20200225-00170
- VernacularTitle:陕西省2020年新型冠状病毒肺炎聚集性疫情典型案例分析
- Author:
Sa CHEN
1
;
Yi ZHANG
;
Chao LI
;
Shaoqi NING
;
Xinxin LI
;
Ni ZHU
;
Yunpeng NIAN
;
Lei CAO
;
Guojing YANG
;
Weihua WANG
;
Yezhou LIU
;
Liang WANG
;
Fangliang LEI
;
Feng LIU
;
Mingwang SHEN
Author Information
1. 陕西省疾病预防控制中心，西安 710054
- Keywords:
COVID-19;
Aggregated epidemic
- From:
Chinese Journal of Epidemiology
2020;41(8):1204-1209
- CountryChina
- Language:Chinese
-
Abstract:
Objective:By analyzed the transmission patterns of 4 out of the 51 COVID-19 cluster cases in Shaanxi province to provide evidences for the COVID-19 control and prevention.Methods:The epidemiological data of RT-PCR test-confirmed COVID-19 cases were collected. Transmission chain was drawn and the transmission process was analyzed.Results:Cluster case 1 contained 13 cases and was caused by a family of 5 who traveled by car to Wuhan and returned to Shaanxi. Cluster case 2 had 5cases and caused by initial patient who participated family get-together right after back from Wuhan while under incubation period. Cluster case 3 contained 10 cases and could be defined as nosocomial infection. Cluster case 4 contained 4 cases and occurred in work place.Conclusion:Higher contact frequency and smaller places were more likely to cause a small-scale COVID-19 cluster outbreak, with potential longer incubation period. COVID-19 control strategies should turn the attention to infection prevention and control in crowded places, management of enterprise resumption and prevention of nosocomial infection.
