苏州市姑苏区1起家庭聚集性新型冠状病毒肺炎疫情的调查分析与处置

目的:探究姑苏区1起家庭聚集性新型冠状病毒肺炎案例的感染来源和传播途径,为防控新型冠状病毒肺炎患者的家庭传播提供依据。方法:对2例新型冠状病毒肺炎病例及其密切接触者、可疑暴露场所进行现场调查(时间为2020年1月16日-1月28日),采集病例及密切接触者咽拭子标本,采用实时荧光定量RT-PCR法检测新型冠状病毒核酸阳性与否。结果:病例-A于2020年1月16日发病,1月25日被确诊为新型冠状病毒肺炎病例,2月5日治愈出院,调查发现病例-A有与武汉旅行史的单位同事接触史;病例-B为病例-A的丈夫,于2020年1月26日发病,1月28日被确诊为新型冠状病毒肺炎,与病例-A同餐同床生活且未采取任何防护措施等,有高危暴露行为。结论:2病例为夫妻有流行病学关联,此疫情为1起家庭新型冠状病毒肺炎案例的聚集性疫情,坚持早期发现和管理传染源,切断传播途径的防控策略是防止疫情在家庭传播扩散的关键。

Investigation and Analysis on a Case of Family-clustering Coronavirus Disease in Gusu District of Suzhou and Its Disposition

Objective: To explore the infection source and transmission route of a family-clustering coronavirus disease(COVID-19) case in Gusu district of Suzhou city so as to provide a reference for the prevention and control of COVID-19 in the family transmission. Methods: Two COVID-19 cases and their close contacts as well as suspected exposure sites were investigated on site(from January 16 to January 28, 2020), and pharyngeal swabs were collected from the cases and close contacts;real-time fluorescence quantitative RT-PCR was used to detect whether the new coronavirus nucleic acid was positive or not. Results: Case A developed on January 16, 2020, who was diagnosed as COVID-19 on January 25, and was cured and discharged on February 5. Case B was the husband of case A, who became ill on January 26, 2020, and was diagnosed as COVID-19 on January 28. Case A and case B lived together, ate at the same table,slept in the same bed but did not take any protective measures, which were high-risk exposure behavior. Conclusion:The 2 cases, husband and wife, were of epidemiological association, which was a characteristically epidemic situation of family-clustering coronavirus disease. The prevention and control strategy of early detection and management of the infection sources and cutting off the transmission route is the key to prevent the spread of the epidemic in the family.