荆州市一起群体隐瞒接触史的新冠肺炎聚集性疫情调查

Investigation on a cluster epidemic of COVID-19 with group-concealed contact history in Jingzhou City

目的梳理1起群体隐瞒接触史的新型冠状病毒肺炎(简称新冠肺炎)聚集性疫情调查过程,总结调查经验。方法利用现场流行病学调查方法对该起新冠肺炎聚集性疫情开展调查,按调查时间分别描述调查经过。结果该事件累计报告6例确诊病例,分布在同一家族的3个家庭。该起疫情先后调查4次,荆州市疾病预防控制中心率先介入,而后社区、公安加入调查。首例病例发病前有武汉旅行史。该家族6例病例及家庭成员均隐瞒接触史,在公安机关刑侦技术帮助下,确认首发病例发病后与另5例病例的聚餐史,密切接触者续发率为41.67%。结论该事件为聚餐引起的聚集性疫情。多部门联合调查对于查明调查对象配合度不高的聚集性疫情至关重要。

Objective To review the investigation process of a cluster epidemic of COVID-19 with group-concealed contact history,and to summarize the survey experience.Methods Field epidemiological methods were used to investigate the COVID-19 cluster,and the investigation process was described separately according to the investigation time.Results Six confirmed cases were cumulatively reported from this cluster event,and distributed in three households of the same family.The cluster was investigated four times.Jingzhou Municipal Center for Disease Control and Prevention intervened firstly,and then community workers and police joined in the investigation.The first case had a history of travel to Wuhan before the onset.The 6 cases and family members involved in the cluster event concealed the contact history.With the help of criminal investigation technology of police,we confirmed the history of dinner with the other 5 cases after the onset of the first case.The second-generation incidence rate of close contacts was 41.67%.Conclusions The event was a cluster caused by a dinner.Joint multi-sectoral investigation is critical for the cluster epidemic with poor cooperation of surveyed subjects.