Analysis of epidemic characteristics of forty-two COVID-19 cluster outbreaks in Hangzhou
10.19428/j.cnki.sjpm.2022.21044
- VernacularTitle:杭州市42起新型冠状病毒肺炎聚集性疫情的流行特征分析
- Author:
Zhou SUN
1
;
Junfang CHEN
1
;
Muwen LIU
1
;
Qingjun KAO
1
;
Qingxin KONG
1
Author Information
1. Hangzhou Municipal Center for Disease Control and Prevention， Hangzhou， Zhejiang 310021 ， China
- Publication Type:Journal Article
- Keywords:
COVID-19;
cluster outbreak;
epidemiology;
investigation
- From:
Shanghai Journal of Preventive Medicine
2022;34(3):265-267
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the epidemic characteristics of forty-two coronavirus disease 2019 （COVID-19） cluster outbreaks in Hangzhou city and provide scientific evidence for further prevention and control measures. Methods Data of the COVID-19 cluster outbreaks in Hangzhou were obtained from the National Public Health Emergency Management Information System. Epidemic characteristics were summarized by reviewing the epidemiological investigation reports. Results A total of forty-two COVID-19 cluster outbreaks were documented in Hangzhou in 2020， including 130 confirmed cases and 7 cases with asymptomatic infection. The majority occurred from January to February， 2020. Moreover， 92.86% （39/42） of the cluster outbreaks were familial transmission. The proportion of the cluster outbreaks involving 2 cases accounted for 54.7% （23/42）. In the secondary cases， family members accounted for 84.15% （69/82）. Conclusion The COVID-19 cluster outbreaks in Hangzhou mainly occur in families， and the majority of the secondary cases is family members.
