摘要 目的了解重庆市新型冠状病毒肺炎(COVID-19)聚集性疫情的流行特征,为改进防控措施提供依据。方法采用2020年1月1日至3月14日重庆市卫生健康委员会官方网站、重庆市政府新闻发布、全国传染病监测信息系统、突发公共卫生事件信息系统调查报告和重庆市疾病预防控制中心COVID-19聚集性疫情调查报告,分析重庆市COVID-19聚集性疫情流行特征。结果重庆市2020年1月1日至3月14日共报告COVID-19聚集性疫情120起,涉及感染者551例,其中确诊病例439例,占全市确诊病例数的76.2%(439/576),无症状感染者112例,占全市无症状感染者的93.3%(112/120)。以家庭聚集性疫情为主,占聚集性疫情总数的68.3%(82/120)。高峰期在1月19日至2月6日。29个区县均有报告,占全市区县数量的74.3%(29/39)。首发病例具有武汉及周边旅居史的聚集性疫情占79.2%(95/120)。结论重庆市COVID-19聚集性疫情以家庭聚集性疫情为主,首发病例的发病-诊断时间长于散发病例。 Objective To understand the epidemiological characteristics of novel coronavirus pneumonia(COVID-19)cluster epidemic situation in Chongqing City to provide the evidence for improving the prevention and control measures.Methods The survey reports of COVID-19 cluster epidemic situation retrived from the official website of Chongqing Municipal Health Commission,Chongqing municipal government press release,National Infectious Disease Surveillance Information System,Public Health Emergency Information System and Chongqing Municipal Center for Disease Control and Prevention from January 1 to March 14,2020 were adopted.Then the epidemiologic characteristics were analyzed.Results A total of 120 COVID-19 clusters were reported in Chongqing City from January 1 to March 14,2020,involving 551 infected persons.Among them,439 cases were //confirm/i/ied,accounting for 76.2%(439/576)of the confirmed cases in the whole city,and 112 cases were asymptomatic,accounting for 93.3%(112/120)of the asymptomatic infected persons in the whole city.The family clusters were the predominant and accounted for 68.3%(82/120)of the total.The peak period was from January 19 to February 6.There were reports from 29 districts and counties,accounting for 74.3%(29/39)of the total number of districts and counties in the whole city.The clusters in which the initial cases had the travel and residence history in and around Wuhan accounted for 79.2%(95/120).Conclusion The cluster epidemic situation of COVID-19 in Chongqing City is dominated by the family clusters,and the onset-diagnosis time of initial cases is longer than that of sporadic cases.
机构地区 重庆市疾病预防控制中心传染病防制所
出处 《重庆医学》 CAS 2021年第7期1148-1151,共4页 Chongqing medicine
关键词 新型冠状病毒肺炎 聚集性疫情 流行特征 重庆市 Corona Virus Disease 2019 cluster epidemic epidemiological characteristic Chongqing
