某养老机构新型冠状病毒肺炎聚集性疫情流行病学特征分析

目的对某养老机构发生一起新型冠状病毒肺炎(COVID-19)聚集性疫情进行回顾性流行病学调查和分析。方法采用"新型冠状病毒肺炎防控方案(第三版)"推荐的个案调查表和依照"新型冠状病毒肺炎聚集性疫情流行病学调查指南(试行第一版)"进行。结果某养老机构有8名护理人员和住院老人感染新冠肺炎,年龄中位为59岁,男、女比例1∶7。于末次暴露后4~15 d确诊。排查出225名密切接触者,无三代院内续发传播;不排除无症状感染存在传染的可能性;病亡1例。结论本次聚集性疫情的感染来源于新冠肺炎确诊病例。建议防控策略应关注养老机构、监管场所等重点部门、重点人群的管控与监测。

Epidemiological analysis on a geracomium cluster of COVID-19

A novel coronavirus pneumonia (COVID-19) epidemic in a geracomium was retrospectively investigated and analyzed. The "novel coronavirus pneumonia prevention and control scheme (Third edition)" recommended questionnaire and the "novel coronavirus pneumonia epidemiological survey guide (Trial first edition)" were adopted. The novel coronavirus pneumonia was found in 8 nursing staff and the elderly in the geracomium. The median age was 59 years old, with a male / female ratio of 1∶7. It was diagnosed 4－15 days after the last exposure. 225 close contacts were identified, without three generations of continuous transmission. The possibility of asymptomatic infection is not excluded also; and one case died. The infection in this clustering was caused by confirmed case of COVID-19. It is suggested that prevention and control strategies should focus on the control and monitoring of geracomium, regulatory departments and other key places and key population.