中山市新型冠状病毒肺炎流行病学特征及防控效果评价

Epidemiological characteristics of COVID-19 and evaluation of control effect in Zhongshan

目的分析中山市新型冠状病毒肺炎(COVID-19)疫情流行病学特征,评价中山市疫情的防控效果,为该市进一步开展疫情防控工作提供理论和实践依据。方法收集2020年3月10日前广东省卫生健康委员会公开发布的中山市COVID-19确诊病例资料,应用描述流行病学方法分析其流行特征,结合中山市疫情防控的一系列措施,评价其干预效果。结果中山市确诊病例66例,其中男性32例,女性34例;平均年龄(43.8±18.2)岁,77.3%的病例具有湖北相关暴露史,71.2%为家族聚集性病例。普通型占95.5%。截至3月10日中山市连续23 d零新增病例,未出现医务人员感染和死亡病例。结论中山市新型冠状病毒肺炎确诊病例具有疫情初发地人群接触史及家庭聚集性,治愈率较高。未出现医务人员感染。

Objective To analyze epidemiological characteristics of the COVID-19 epidemic and evaluate the control effect in Zhongshan City.Methods Data of COVID-19 confirmed cases published in Zhongshan City before March 10,2020 were collected,and the epidemiological methods were used to analyze its epidemiological characteristics.Combined with a series of measures for epidemic prevention and control in Zhongshan City,the intervention effect was evaluated.Results Sixty-six COVID-19 cases were confirmed,including 32 males and 34 females.The average age was(43.8±18.2)years.Of the cases,77.3%had a history of Hubei-related exposure,and 71.2%were family-clustered.The common type accounted for 95.5%.There were no new cases for 23 consecutive days,and no medical staff infections and deaths.Conclusion The COVID-19 confirmed cases in Zhongshan City had a history of Hubei-related exposure and the family cluster,with a high cure rate and without medical staff infections.