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预防医学  2020, Vol. 32 Issue (6): 555-558    DOI: 10.19485/j.cnki.issn2096-5087.2020.06.004
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温州市新型冠状病毒肺炎病例流行特征分析
李玲, 夏子淇, 余向华, 倪朝荣, 潘琼娇, 许峰, 李万仓, 张晓铭, 曾士典
温州市疾病预防控制中心,浙江 温州 325001
Epidemiological characteristics of coronavirus disease 2019 in Wenzhou
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
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输出: BibTeX | EndNote (RIS)      
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、聚集性疫情等资料,对温州市COVID-19确诊病例的人群特征、发病时间、地区分布、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日后新增发病例数开始明显减少,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%。聚集性疫情共79起,累计病例330例,占65.48%。自行就医发现病例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。
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李玲
夏子淇
余向华
倪朝荣
潘琼娇
许峰
李万仓
张晓铭
曾士典
关键词 新型冠状病毒肺炎输入病例流行特征    
AbstractObjeetive The epidemiological characteristics of confirmed cases of the 2019 novel coronavirus diseases (COVID-19) which was reported in Wenzhou by February 28,2020 were described and analyzed to provide evidence for prevention and control measures in next stage. Methods The field investigation method was employed on all suspected and confirmed cases. The data of time,spatial and population distribution, source of infection and detective routes of all confirmed cases of COVID-19 in Wenzhou were collected and extracted from the reports of field investigation and the National Diseases Prevention and Control Information System. Results As of February 20,2020,504 confirmed cases of COVID-19 were diagnosed in Wenzhou, which included one death case. Among all 13 counties, the highest number of confirmed cases were distributed in Yueqing,Ruian and Lucheng. Among 504 cases, the male to female ratio was reported as 1.14:1. The youngest case was 2 years old while the oldest case was 93 years old. Most of the confirmed cases were among people between the ages of 25 and 64 years old. The most common occupation of the confirmed cases was businessman,which accounts for 29.76% (150 cases). Clinical symptoms of the first confirmed case of COVID-19 in Wenzhou occurred on January 4, 2020. Approximately 70% of cases had the first symptoms from January 19 to February 1. The daily number of new cases on January 24 and January 26 were the highest while the number of new cases per day declined significantly after February 2, and there were no new cases after February 14. Among all confirmed cases, the infection source of 61.71% cases were related to Wuhan. As of February 20, 2020, a total of 79 clusters were reported in Wenzhou, which involved 330 cases. Approximately 30% of confirmed cases came to hospitals unaccompanied by community staffs, and cases which confirmed after February 13 were basically found in central isolation locations or by grid checkers. Conclusions The main reason for the high case numbers of COVID-19 in Wenzhou, in Zhejiang province, was the high number of wenzhou citizens who work in Wuhan. Imported cases account for the most confirmed cases during the early period, while mainly confirmed cases were local cases during the middle and late periods. The outcomes suggest the prevention and control measures employed by Wenzhou government, which included closed-loop control and quantitative control, have achieved remarkable results and the epidemic of COVID-19 in Wenzhou has been initially controlled.
Key wordscoronavirus disease 2019    epidemiological characteristics    descriptive analysis
收稿日期: 2020-03-07      出版日期: 2020-06-22
ZTFLH:  R181.3  
通信作者: 曾士典,E-mail: wuyeling@163.com   
作者简介: 李玲,硕士,主管医师,主要从事疾病监测与控制工作
引用本文:   
李玲, 夏子淇, 余向华, 倪朝荣, 潘琼娇, 许峰, 李万仓, 张晓铭, 曾士典. 温州市新型冠状病毒肺炎病例流行特征分析[J]. 预防医学, 2020, 32(6): 555-558.
LI Ling, XIA Ziqi, YU Xianghua, NI Chaorong, PAN Qiongjiao, XU Feng, LI Wancang, ZHANG Xiaoming, ZENG Shidian. Epidemiological characteristics of coronavirus disease 2019 in Wenzhou. Preventive Medicine, 2020, 32(6): 555-558.
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http://www.zjyfyxzz.com/CN/10.19485/j.cnki.issn2096-5087.2020.06.004      或      http://www.zjyfyxzz.com/CN/Y2020/V32/I6/555
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