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预防医学  2020, Vol. 32 Issue (3): 217-222    DOI: 10.19485/j.cnki.issn2096-5087.2020.03.001
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浙江省新型冠状病毒肺炎病例流行特征分析
林君芬, 吴梦娜, 吴昊澄, 章涛, 吴晨, 李傅冬
浙江省疾病预防控制中心,浙江 杭州 310051
Epidemiological characteristics of coronavirus disease 2019 in Zhejiang Province
LIN Junfen, WU Mengna, WU Haocheng, ZHANG Tao, WU Chen, LI Fudong
Zhejiang Provincial Center for Disease Control and Prevention,Hangzhou,Zhejiang 310051,China
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摘要 目的 分析2020年1月21日—2月20日浙江省报告的新型冠状病毒肺炎(COVID-19)病例流行特征,为制定和实施有效的防控措施提供依据。方法 通过中国疾病预防控制信息系统收集2020年1月21日—2月20日浙江省报告的COVID-19病例资料,对浙江省COVID-19病例的时间分布、地区分布、人群分布、症状严重程度和暴露史等流行特征进行描述性分析。结果 截至2020年2月20日浙江省共报告COVID-19病例1 284例,其中确诊病例1 176例,占91.59%;无症状感染者108例,占8.41%。1月21日浙江省报告首例确诊病例,1月22日—29日为发病高峰,单日最高87例,随后逐渐下降;1月28日—30日为病例报告高峰,单日最高130例,随后逐渐下降。截至2月4日,浙江省79个县(市、区)均有病例发病,县级覆盖率为87.78%,此后没有再增加。1 284例病例男女比为1.02∶1;年龄集中在30~69岁,1 021例占79.52%;职业以商业服务为主,339例占26.40%;医务人员感染11例,但均非职业暴露所致。以轻症病例为主,1 010例占85.88%;死亡1例。1月23日前,浙江省COVID-19疫情以湖北省输入病例为主,本地病例散在发生;1月27日后转变为以本地病例为主。结论 浙江省COVID-19疫情波及面广,人群普遍易感;病例集中在30~69岁,以轻症为主,无医务人员因职业暴露感染。浙江省前期防控措施成效显现,COVID-19疫情已转入低水平散发状态;随着返岗、返工、返学人员增加,建议防控策略从面上防控转为精准防控。
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林君芬
吴梦娜
吴昊澄
章涛
吴晨
李傅冬
关键词 新型冠状病毒肺炎严重急性呼吸道综合征冠状病毒2型流行特征    
AbstractObjective To learn the epidemiological characteristics of coronavirus disease 2019 (COVID-19) cases reported from January 21 to February 20,2020 in Zhejiang Province,so as to provide basis for formulating and implementing effective control measures. Methods The COVID-19 cases reported by Zhejiang Province were extracted from the National Diseases Prevention and Control Information System. A descriptive analysis was adopted for the epidemiological characteristics of COVID-19 cases,including time,spatial and population distribution,severity of symptoms, and exposure history. Results Totally 1 284 cases were reported,of which 1 176 were confirmed cases (91.59%) and 108 were asymptomatic cases (8.41%). The first confirmed case was reported on January 21. The curve of the disease onset peaked from January 22 to 29, with 87 cases as the biggest number a day. The curve of the disease reported peaked from January 28 to 30, with 130 cases as the biggest number a day. Then the number of the cases showed a declining trend. By February 4, totally 79 counties (cities, districts) had confirmed cases, covering 87.78% of Zhejiang Province, and it has not increase since then. A male to female ratio of 1.02∶1 was reported among 1 284 cases,1 021 were 30-69 years old (79.52%) and 339 (26.40%) were business service providers. There were 11 health workers reported to be infected,but not by occupational exposure. Among the confirmed cases, 1 010 (85.88%) were clinically mild cases. One case died. Before January 23, the cases were mainly imported from Hubei Province, local cases were predominant by the end of January. Conclusions The COVID-19 epidemic has spread widely in Zhejiang Province and people are generally susceptible. Most cases were clinically mild, and were aged 30-69 years. No health workers infected were due to occupational exposure. The incidence of COVID-19 in Zhejiang Province has turned into a lower level,suggesting that the early prevention and control measures have achieved initial results. With people returning from holiday, precise prevention and control should be put into effect.
Key wordscoronavirus disease 2019    severe acute respiratory syndrome coronavirus 2    epidemiological characteristics
收稿日期: 2020-02-24      出版日期: 2020-03-19
ZTFLH:  R181.3  
  R563.1  
基金资助:省自然科学基金重点项目(LEZ20H260003)
通信作者: 林君芬,E-mail:jflin@cdc.zj.cn   
作者简介: 林君芬,硕士,主任医师,主要从事疾病监测与控制工作
引用本文:   
林君芬, 吴梦娜, 吴昊澄, 章涛, 吴晨, 李傅冬. 浙江省新型冠状病毒肺炎病例流行特征分析[J]. 预防医学, 2020, 32(3): 217-222.
LIN Junfen, WU Mengna, WU Haocheng, ZHANG Tao, WU Chen, LI Fudong. Epidemiological characteristics of coronavirus disease 2019 in Zhejiang Province. Preventive Medicine, 2020, 32(3): 217-222.
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http://www.zjyfyxzz.com/CN/10.19485/j.cnki.issn2096-5087.2020.03.001      或      http://www.zjyfyxzz.com/CN/Y2020/V32/I3/217
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