温州市新型冠状病毒肺炎病例流行特征分析  

Epidemiological characteristics of COVID-19 in Wenzhou

作　　者：李玲[1] 夏子淇 余向华[1] 倪朝荣[1] 潘琼娇[1] 许峰 李万仓[1] 张晓铭[1] 曾士典[1] LI Ling;XIA Ziqi;YU Xianghua;NI Chaorong;PAN Qiongjiao;XU Feng;LI Wancang;ZHANG Xiaoming;ZENG Shidian(Wenzhou Center for Disease Control and Prevention,Wenzhou,Zhejiang 325001,China)

机构地区：[1]温州市疾病预防控制中心,浙江温州325001

出　　处：《预防医学》2020年第6期555-558,共4页CHINA PREVENTIVE MEDICINE JOURNAL

基　　金：温州市新型冠状病毒防控重大科技创新攻关项目(ZY2020001)。

摘　　要：目的分析2020年1月21日-2月28日温州市新型冠状病毒肺炎(COVID-19)病例的流行特征,为防控COVID-19疫情提供依据。方法通过中国疾病预防控制信息系统、突发公共卫生事件管理信息系统和浙江省卫生健康委员会官网收集1月21日-2月28日温州市报告的COVID-19确诊病例和聚集性疫情等资料,对温州市COVID-19确诊病例的人群分布、发病时间、地区、感染来源和发现方式等流行特征进行描述性分析。结果温州市1月21日报告首例(浙江省首例)COVID-19确诊病例,截至2月28日24时累计报告COVID-19确诊病例504例,占浙江省同期的42.86%;死亡1例,为浙江省首例死亡病例,病死率为0.20%。男性268例,女性236例,男女比为1.14∶1;年龄集中在25~64岁,429例占85.12%;商业服务人员居多,150例占29.76%。发病时间集中在1月19日-2月1日,353例占70.04%。2月2日后每日新增发病例数明显减少,2月14日后无新增病例发病。输入病例211例,占41.87%,1月21日达高峰,1月23日后逐渐减少;本地病例293例,占58.13%,发病曲线与输入病例的相似,发病高峰为1月26日,与输入病例发病高峰间隔5 d。病例数最多的地区为乐清市,170例占33.73%。病例感染来源以武汉市为主,343例占68.06%。报告聚集性疫情79起,累计确诊病例330例,占65.48%。自行就诊发现148例,占29.37%。2月13日后基本是集中隔离点或网格排查发现。结论温州市COVID-19疫情前期输入病例较多,主要为武汉市返乡经商人员,发病时间集中在1月19日-2月1日,以聚集性疫情为主,病例数最多的地区为乐清市。Objective To learn the epidemiological characteristics of coronavirus diseases 2019(COVID-19)cases in Wenzhou reported from January 21 to February 28,2020,so as to provide reference for the prevention and control of COVID-19.Methods We collected the data of COVID-19 confirmed cases and clusters through National Diseases Prevention and Control Information System,Public Health Emergency Management Information System and Zhejiang Provincial Health Committee website,and analyzed the epidemic characteristics of COVID-19 in Wenzhou in terms of time,spatial and population distribution,source of infection and case finding routes.Results The first confirmed case of COVID-19 in Wenzhou was reported on January 21.By February 28,there were 504 confirmed cases,accounting for 42.86%of the total number in Zhejiang Province in the same period.One case died,as the first death in Zhejiang Province,with a fatality rate of 0.20%.Among 504 cases,the male(268 cases)to female(236 cases)ratio was 1.14∶1;429 cases aged between 25 and 64 years old,accounting for 85.12%;150 cases were engaged in business,accounting for 29.76%.Approximately 70.04%of cases had the first symptoms during January 19 and February 1.The number of new cases declined significantly after February 2,and there were no new cases onset after February 14.Totally 211(41.87%)cases were imported,peaked on January 21 and decreased after January 23;293(58.13%)cases were local,peaked on January 26,with an incidence curve similar to that of imported cases(5-day lag of peak time).Among 13 counties,the largest number of confirmed cases were Yueqing reported the most cases,accounting for 33.73%(170 cases).The main source of infection was Wuhan,accounting for 68.06%(343 cases).There were 79 clusters,with 330 cases reported(65.48%).About 29.37%(148 cases)of the cases were found after they sought a doctor,and the cases confirmed after February 13 were found during isolation or by grid screening.Conclusions In the early stage,the COVID-19 cases in Wenzhou were mainly businessmen bac

关 键 词：新型冠状病毒肺炎 输入病例 流行特征 

分 类 号：R181.3[医药卫生—流行病学]