2021年上海市某区1起新型冠状病毒肺炎家庭内传播疫情调查  

Investigation of a family cluster of COVID-19 in a district of Shanghai in 2021

作　　者：曹慎[1] 谢梦[1] 肖志平 张政熙[1] 韩雪[1] CAO Shen;XIE Meng;XIAO Zhiping;ZHANG Zhengxi;HAN Xue(Yangpu District Center for Disease Control and Prevention,Shanghai 200090,China)

机构地区：[1]上海市杨浦区疾病预防控制中心,上海200090

出　　处：《上海预防医学》2022年第4期300-302,308,共4页Shanghai Journal of Preventive Medicine

基　　金：上海市杨浦区“好医师”人才培养项目。

摘　　要：【目的】分析上海市某区1起新型冠状病毒肺炎(简称“新冠肺炎”)家庭内传播疫情流行病学特征,为新冠肺炎聚集性疫情防控提供科学依据。【方法】应用现场流行病学调查方法,对2021年上海市某区该起新冠肺炎家庭聚集性疫情的病例与密切接触者进行调查,对流行病学调查资料进行描述性分析。采用实时荧光定量逆转录聚合酶链反应(RT-PCR)对采集的标本进行新型冠状病毒核酸检测。【结果】病例A为本起家庭聚集性疫情的感染来源,共传染2代病例2人(病例B和C)。家庭外密切接触者与次密切接触者检测结果均为阴性。【结论】新型冠状病毒传染性强且人群普遍易感,容易造成家庭聚集性疫情的发生。应及早发现无症状感染者并加以隔离,加强对病例密切接触者的追踪及管理,尽早识别2代病例。[Objective]To analyze the epidemiological characteristics of a family cluster of COVID-19 in a district of Shanghai,and to provide a scientific basis for prevention and control of cluster epidemic of COVID-19.[Methods]Field epidemiological survey was applied to study the cases and close contacts of a family cluster of COVID-19 in a district of Shanghai in 2021. Descriptive analysis of epidemiological survey data was conducted and real-time fluorescent quantification(RT-PCR)was used to detect new coronavirus nucleic acid for the collected specimens.[Results]Case A was the source of infection in the home aggregated epidemic. There were 2 second-generation cases infected in the whole incubation period. Case B and C were transmitted by case A through eating together. The PCR test results were negative both in the close contacts outside the family of primary contacts as well as in the close contacts to primary close contacts.[Conclusion]COVID-19 is highly contagious and populations are generally susceptible. It is easy to cause family aggregated epidemic situation. Asymptomatic infection should be detected early and isolated. We should strengthen the tracking and management of close contacts of COVID-19 cases,and identify the secondgeneration cases as soon as possible.

关 键 词：新型冠状病毒肺炎 家庭聚集性 疫情 上海 

分 类 号：R183[医药卫生—流行病学]