Objective To describe the epidemic characteristics of COVID-19 in Huoshan County, and analyze the experience and deficiency in prevention and control work, so as to provide basis for perfecting the prevention and control strategy and measures of COVID-19 in Huoshan County. Methods Epidemiological investigation novel coronavirus pneumonia in novel coronavirus pneumonia cases was carried out in 22 cases of new crown pneumonia virus in Huoshan County from January 31, 2020 to February 20th. Results Among 22 cases of new coronavirus infection, 17 cases were confirmed and 5 cases were asymptomatic.There were 6 clusters of epidemic situation, involving 18 cases, accounting for 81.8% of the total number of infected persons.Among the 17 confirmed cases, 4 cases were first-time diagnosed to the designated hospital and 2 cases were confirmed.Of 10 indicative cases, 9 cases did not get better due to the delay of the condition and went to the designated hospital for treatment.The time interval between exposure and onset in a family cluster outbreak is longer, with a median of 6 days. Conclusion The epidemic situation of COVID-19 outbreak in Huoshan County has been effectively controlled after the implementation of strong national control measures.
Key words
COVID-19 /
Epidemiological investigation /
Emerging infectious diseases
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References
[1] Wang D,Hu B,Hu C,et al.Clinical Characteristics of 138 hospitalized patients with 2019 novel coronavirus-infected pneumonia in Wuhan, China[J].JAMA,2020.DOI:10.1001/jama.2020.1585.
[2] Wang C,Horby PW,Hayden FG.A novel coronavirus outbreak of global health concern[J].Lancet (London, England),2020,395(10223):470- 473.DOI:10.1016/S0140-6736(20)30185-9.
[3] 国家卫生健康委员会办公厅,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].http://www.nhc.gov.cn/yzygj/s7653p/202002/8334a8326dd94d329df351d7da8aefc2.shtml.2020年2月18日.
[4] 国家卫生健康委员会办公厅.新型冠状病毒肺炎防控方案(第五版)[EB/OL].http://www.nhc.gov.cn/jkj/s3577/202002/a5d6f7b8c48c451c87dba14889b30147.shtml.2020年2月21日.
[5] 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.
[6] 周涛,刘全辉,杨紫陌,等.新型冠状病毒感染肺炎基本再生数的初步预测[J].中国循证医学杂志,2020,20(3):359-363.
[7] 梁继仁,韦松华,钱秀芳,等.14例新型冠状病毒肺炎病例流行病学和临床特征[J/OL].中国感染控制杂志.
[8] 中华预防医学会新型冠状病毒肺炎防控专家组.新型冠状病毒肺炎流行病学特征的最新认识[J].中华流行病学杂志,2020,41(2):139-144.
[9] 陈芳,李青,龚磊,等.安徽省疾控机构卫生应急风险沟通工作现况及需求分析[J].2019,25(6):424-427.
[10] 施盈,周艺彪.传染病流行病学的研究进展与挑战[J].安徽预防医学杂志,2019,25(1):1-4.
[11] 国家卫生健康委员会办公厅.新型冠状病毒肺炎防控方案(第四版)[EB/OL].http://www.nhc.gov.cn/jkj/s3577/202002/573340613ab243b3a7f61df260551dd4.shtml.2020年2月7日.
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