Epidemiological characteristics of COVID-19 in Hainan Province,China
CHEN Shao-Ming, JIA Peng-Ben, QIU Li, FENF Fan-Li, PAN Ting-ting, HUANG Ya-jing, CHEN Jing-jing, CUI Lei, CHEN Yan, SUN Chu-yang, ZENG Xiao-mei, JIN Lei, JIN Yu-ming, HE Bin
Hainan Center for Disease Control and Prevention, Haikou 570203, China
Abstract：The epidemiology characteristics of 2019 novel coronavirus diseases (COVID-19) cases in Hainan were collected and analyzed for providing next stage control and prevention strategy in next stage. Spatial and temporal distribution, population characteristic, cluster, the interval between onset, visiting clinic, admitted were analyzed. Local cases and severe cases were also included in the analysis. Result showed that a total of 168 confirmed cases, including 36 severe cases and 5 fatal cases were reported. Cases were mainly distributed in Haikou, Sanya etc tourism cities and counties. The first case occurred in Jan 13th and the epidemic peak occurred in Jan 24th. Since Feb 6th, onset of illness has declined. The male-to-female ratio was 0.9∶1. The median age was 51 years. Cases older than 50 years accounted for 54.8%. Retirees accounted for 36.9%, which was highest in all cases. Since Feb, the proportion of local cases rose dramatically. The period from onset to visiting clinic (OTV), from first visiting clinic to diagnosis (VTF), from onset to diagnosis (OTD) and from onset to be admitted (OTA) was longer in local cases than imported cases. Median age and the percentage of underlying diseases of severe/extreme cases were higher than mild/ordinary cases. OTV of severe/extreme cases was longer than mild/ordinary cases, while for VTF, the former was shorter than latter. The epidemic was divided into three stages. Most of cases in the first stage were imported cases, while in the second stage most of cases were local cases. There were few cases in the third stages. We should strengthen personal protection and health monitoring for people in service industry, isolate the close contacts, and carry out publicity and education to raise the awareness of medical treatment for people, especially for old people. Clinical doctors should monitor the state of the patients older than 60 years and with underlying diseases. We should step up epidemic monitoring prevention and control measure for people return from holiday and immigrant to consolidate the effects of prevention and control work.
[1] The 2019-nCoV Outbreak Joint Field Epidemiology Investigation Team, Li Q. Notes from the field: an outbreak of NCIP (2019-nCoV) infection in China —Wuhan, Hubei Province, 2019－2020[J]. China CDC Weekly,2020,2(2): 79-80. [2] Tan WJ, Zhao X, Ma XJ, et al. A novel coronavirus genome identified in a cluster of pneumonia cases — Wuhan, China 2019－2020[J]. China CDC Weekly,2020, 2(2): 61-62. [3] Zhu N, Zhang D, Wang W, et al. A novel coronavirus from patients with pneumonia in China,2019[J]. N Engl J Med,2020,382:727-733. DOI: 10.1056/NEJMoa2001017 [4] 新华网.专家称系新型冠状病毒武汉不明原因的病毒性肺炎疫情病原学鉴定取得初步进展[EB/OL] .(2020-01-09)[2020-03-04].http//www.xinhuanetcom/politics/2020-01/09/c_1125438971.Htm. [5] 海南省人民政府.我省严密部署防控新型冠状病毒感染的肺炎疫情[EB/OL].[2020-1-22][2020-03-03].http://www.hainan.gov.cn/hainan/yqfkzzzzxxx/202001/573eaecedf0441949abcc4-c03ec93699.shtml. [6] 海南省人民政府.我省启动重大突发公共卫生事件一级响应[EB/OL]. (2020-1-26)[2020-03-03].http://www.hainan.gov.cn/hainan/yqfkzzzzxxx/202001/4d068b6761db4f1aadc9409-a5b3b8891.shtml. [7] 中华人民共和国国家卫生健康委员会办公厅,中华人民共和国国家中医药管理局办公室.新型冠状病毒肺炎诊疗方案(试行第六版)[EB/OL].(2020-02-21)[2020-03-03]. http://www.nhc.gov.cn/yzygj/s7653p/202002/8334a8326dd94d329df351d7da8-aefc2.shtml. [8] 国家卫生健康委办公厅新型冠状病毒肺炎防控方案(第五版[EB/OL](2020-02-19)[2020-3-3] . http://www.nhc.gov.cn/jkj/s3577/202002/a5d6f7b8c48c451c87dba14889b30147.shtml. [9] 林君芬,吴梦娜,吴昊澄,等.浙江省新型冠状病毒肺炎病例流行特征分析[J]. 预防医学杂志,2020, 32 (3): 217-222. DOI:10.19485/j.cnki.issn2096-5087.2020.03.001 [10] 中国疾病预防控制中心新型冠状病毒肺炎应急响应机制流行病学组. 新型冠状病毒肺炎流行病学特征分析[J].中华流行病学杂志,2020,41 (2):145-151. DOI:10.3760/cma.j.issn.0254-6450.2020.02.003 [11] 欧剑鸣,叶雯婧,郑奎城,等.福建省新型冠状病毒肺炎流行病学特征分析[J].中国人兽共患病学报, 2020,36(5):00-00. DOI:10.3969/j.issn.1002-2694.2020.00.029
2020, Vol. 36 
