安徽省六安市新冠肺炎疫情流行病学特征分析  

Epidemiological characteristics of COVID-19 in Lu’an,Anhui province

作　　者：李朝阳[1] 常宏伟[1] 高大维[1] 杨卫[1] 张凤[1] LI Chao-yang;CHANG Hong-wei;GAO Da-wei;YANG Wei;ZHANG Feng(Lu’an Center for Disease Control and Prevention,Lu,an,Anhui 237000,China)

机构地区：[1]六安市疾病预防控制中心,安徽六安237000

出　　处：《中国国境卫生检疫杂志》2021年第3期171-174,共4页Chinese Journal of Frontier Health and Quarantine

摘　　要：目的分析六安市新冠肺炎的流行病学特征及防控措施,为防控急性呼吸系统传染病积累经验。方法应用现场流行病学方法,对六安市2020年1-2月新冠肺炎确诊病例进行流行病学调查,梳理分析确诊病例间的传播关系,回顾疫情防控过程。结果 2020年1月22日-2月18日,六安市共报告新冠肺炎确诊病例69例,其中普通型65例(94.2%),轻型3例(4.4%)重症1例(1.4%),无死亡病例。外地输入型病例21例(30.4%)、亲属间传播17例(24.6%)、非亲属接触传播27例(39.1%),感染来源不明4例。流行病学调查发现一条传播链,涉及11人,造成3次家庭内传播。结论六安市新冠肺炎疫情是由外地输入型病例引起,发展为本地局部扩散的发展模式。春节期间的社交活动加速了新冠病毒传播。在积极防控策略下,疫情得到有效控制。Objective To analyze the epidemiological characteristics and control measures of COVID-19,to summerize the experience for control acute respiratory infectious diseases. Methods The epidemiological investigation was conducted on the confirmed cases with COVID-19 during January to February,2020,in Lu’an city by field epidemiology method. Results Totally,69 cases were diagnosed as COVID-19 in Lu’an city. Among them,65 were clinically categorized as common,3 mild and 1 severe infection. 21 cases were imported infections from other provinces(30.4%),while 17 cases were infected by intra-familiar transmission(24.6%) and 27 cases belonged to non-relative contact transmission(39.1%),with 4 cases unknown infected sources. A transmission chain was found by molecular survey,involved 11 persons from 3 families. Conclusion The epidemic of COVID-19 in Lu’an city had transferred from importing into local transmission,and the social contacts during Spring Festival accelerated the spread of COVID-19.The active prevention and control measures terminated the disease spread.

关 键 词：新冠肺炎 新冠病毒 流行病学 传播链 家庭聚集 

分 类 号：R184.6[医药卫生—流行病学]