四川省664例新型冠状病毒肺炎病例的流行病学特征分析  

Epidemiological characteristics of 664 COVID-19 cases in Sichuan Province

作　　者：田路路 姚歆 王梦媛 林晓东 赵洵颖 成龙 沈紫琼 邹锟[1] 李佳圆[1] TIAN Lu-lu;YAO Xin;WANG Meng-yuan;LIN Xiao-dong;ZHAO Xun-ying;CHENG Long;SHEN Zi-qiong;ZOU Kun;LI Jia-yuan(West China School of Public Health/West China Fourth Hospital,Sichuan University,Chengdu,Sichuan 6100412,China;不详)

机构地区：[1]四川大学华西公共卫生学院/四川大学华西第四医院,四川成都610041 [2]四川省卫生健康信息中心

出　　处：《现代预防医学》2021年第10期1765-1768,1783,共5页Modern Preventive Medicine

摘　　要：目的了解四川省新型冠状病毒肺炎病例的流行病学特征,为优化新型冠状病毒肺炎防控策略提供依据。方法收集截至2020年6月17日的四川省病例的基本资料、流行病学史、发病日期、首发症状等信息,进行统计描述性分析。结果四川省病例共664例,90.1%的病例集中在2020年1月和2月发病,病例年龄范围1~88岁,19~59岁病例占79.4%,60岁及以上病例的重症及危重症比例(38.0%)高于60岁以下病例(10.1%),输入病例(49.7%)和本地续发病例(33.7%)在不同性别、年龄组间的分布存在差异。新冠病例潜伏期中位数为4(3,8) d,代际间隔中位数为7(3,10) d。病例的首发症状主要为咳嗽(41.11%)和发热(40.06%)。结论四川省新冠肺炎疫情流行水平低,防控工作取得阶段性成效。根据人群分布特点,在常态化防控工作中,应加强对老年人和流动人口等重点人群的监测与防控,各场所除常规体温监测外,应并联监测多种症状,出现新发病例时及时关注潜伏期和代际间隔,适度开展重点人群筛查,严防疫情反弹。Objective To understand the epidemiological characteristics of COVID-19 cases in Sichuan Province,and to provide support for further optimization of prevention and control strategy.Methods The basic information,epidemiological history,date of onset,initial symptoms of COVID-19 cases in Sichuan Province before June 17,2020 were collected for statistical descriptive analysis.Results There were 664 cases in Sichuan Province,and 90.1%of the cases occurred in January and February 2020.The age range of cases was 1-88 years,and cases aged 19 to 59 years accounted for 79.4%.The proportion of severe and critical cases aged 60 and above was higher(38.0%)than that under 60 years old(10.1%).The distribution difference of imported cases(49.7%)and local secondary cases(33.7%)was statistically significant between different gender and age groups.The median incubation period was 4(3,8)days,and the median serial interval was 7(3,10)days.The main initial symptoms were cough(41.11%)and fever(40.06%).Conclusion The epidemic level of COVID-19 in Sichuan Province is low,and the prevention and control has achieved good results at this stage.According to the characteristics of population distribution,in the normalized prevention and control work,the surveillance and prevention and control of key populations such as the elderly and mobile population should be strengthened,and each site should monitor multiple symptoms in parallel in addition to routine temperature monitoring,pay timely attention to the incubation period and intergenerational interval when new cases appear,and carry out screening of key populations in an appropriate manner to prevent the rebound of the epidemic.

关 键 词：新型冠状病毒肺炎 流行病学特征 首发症状 

分 类 号：R563.1[医药卫生—呼吸系统] R181.3[医药卫生—内科学]