目的 分析合肥市新型冠状病毒肺炎流行病学资料,探讨新型冠状病毒肺炎流行病学特点。方法 收集2020年1月20日-2月20日的合肥市新冠肺炎疫情资料,采用描述性流行病学分析方法,分析新冠肺炎流行情况。结果 合肥市共确诊新冠肺炎病例174例,男女病例之比为1.15:1。常见症状以发热(占52.9%)和咳嗽(占26.4%)为主,轻症占95.4%。发病高峰、就诊高峰、确诊高峰时间分别在1月24日-1月30日、1月24日-2月5日、1月28日-2月9日。随着疫情进展,病例感染来源从具有湖北(武汉)暴露史转变为本地感染。启动卫生应急Ⅰ级响应后,发病至就诊时间(Z=-3.654,P<0.001,M响应前=4.5,M响应后=2)、发病至确诊时间(Z=-2.718,P=0.007,M响应前=8,M响应后=6)间隔与启动前相比,差异具有统计学意义。结论 合肥市新冠肺炎疫情由输入性感染病例引起,新冠肺炎病例以轻症为主,防控措施有力有效。
Abstract
Objective To analyze the epidemiological characteristics of corona virus 2019(COVID-2019)in Hefei city,and to provide scientific reference for the study of the epidemic regularity of COVID-19. Methods Data of COVID-19 epidemic in Hefei city from January 20 to February 20,2020 were collected.Descriptive epidemiological methods were used to analyze the epidemic characteristics of COVID-19. Results A total of 174 cases of COVID-19 have been confirmed in Hefei city,with a male to female ratio of 1.15 to 1.The common symptoms were fever (52.9%) and cough (26.4%),and the general conditions were 95.4%.The peak time of onset,treatment and diagnosis were from January 24 to January 30,January 24 to February 5 and January 28 to February 9,respectively.With the development of the epidemic situation,the source of infection changed from Hubei (Wuhan) exposure history to local infection.After Public Health Primary Emergency Response was started,there were statistically significant differences in the time from onset to treatment (Z=-3.654,P< 0.001,M Response before= 4.5,M Response after= 2),and from onset to diagnosis (Z=-2.718,P= 0.007,M Response before = 8,M Response after= 6) interval compared with before initiation. Conclusion The COVID-19 epidemic in Hefei is caused by imported COVID-19 cases,most of which were mild,and the prevention and control measures were effective.
关键词
新型冠状病毒肺炎 /
COVID-2019 /
流行病学 /
输入性病例
Key words
Novel coronavirus pneumonia /
COVID-2019 /
Epidemiology /
Imported cases
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