扬州市首起输入性新型冠状病毒肺炎家庭聚集性的流行病学调查

田元睿; 吴志明; 韩小亮; 王月萍; 刘泓

doi:10.19428/j.cnki.sjpm.2020.20117

扬州市首起输入性新型冠状病毒肺炎家庭聚集性的流行病学调查

Epidemiological investigation on the first family aggregation epidemic of corona virus disease 2019 in Yangzhou

摘要

摘要:
目的描述一起输入性新型冠状病毒肺炎(COVID-19)聚集性疫情，以探讨该病在人群中传播模式。
方法应用现场流行病学方法，对聚集性疫情相关的病例及其密切接触者进行流行病学调查，收集患者、密切接触者的发病日期、隔离日期等资料，采用实时荧光定量RT-PCR法对采集的咽拭子标本进行新型冠状病毒核酸检测。
结果在这起聚集性疫情中确诊病例1例，此病例共接触36人(家庭内12人，家庭外24人)，家庭内2人核酸检测阳性，被诊断为无症状感染者。
结论COVID-19传播主要为呼吸道飞沫传播和密切接触传播，易造成家庭聚集性疫情。

Abstract:
ObjectiveTo explore the transmission pattern of corona virus disease 2019 (COVID-19) in the population by describing an imported case of novel coronavirus infected pneumonia epidemic situation.
MethodsUsing the method of field investigation, epidemiological investigations were carried out for the imported COVID-19 case and the close contacts related to this epidemic cluster.Data were collected concerning the date of onset, isolation of the case and close contacts.The novel coronavirus nucleic acid was collected from the throat swabs of the case and close contacts.These samples were detected by real-time fluorescence quantitative RT-PCR.
ResultsIn this epidemic cluster, there was one confirmed case, that had been exposed to 36 people (12 in the family and 24 outside the family) and 2 in the family were nucleic acid positive and diagnosed as asymptomatic infections.
ConclusionCOVID-19 transmission proves to be mainly through respiratory droplets and close contact, which easily causes family aggregation epidemic.

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