重庆市新型冠状病毒肺炎确诊患者活动轨迹分析

Analysis on COVID-19 Confirmed Patients’Activity Trajectory in Chongqing

重庆市353例新型冠状病毒肺炎确诊患者的活动轨迹显示,从发病到确诊平均间隔为4.42天,41.6%有湖北旅居史,39.1%有湖北旅居人员接触史,19.3%无湖北旅居人员接触史,45.6%的患者报告是家人或亲戚关系,11.1%的患者报告是朋友/同学/同事关系,有50.7%、26.3%、24.4%、11.3%的患者报告分别具有聚餐、多次就诊、购物和休闲娱乐经历;这表明该市患者具有主要集中在家庭之间、发病诊治及时性不断增强、由输入为主转变为以本地感染为主、大都具有聚餐暴露史等特征,对精准防控疫情当具有重要参考意义。

The activity trajectory of 353 COVID-19 confirmed patients’in Chongqing reveals the average interval from onset to diagnosis was 4.42 days.41.6%of the confirmed cases had a history of traveling or living in Hubei,39.1%had a history of contacts with Hubei residents,and 19.3%had no history of contacts with Hubei residents,45.6%are family menbers or relatives,11.1%are friends,classmates,or colleagues;50.7%,26.3%,24.4%,and 11.3%have dinners together,multiple visits to the hospital,shopping,and leisure and entertainment experiences respectively,which shows that confirmed patients are mainly concentrated between families,the timeliness in diagnosis and treatment of patients with COVID-19 in this area have been continuously enhanced,they have changed from importing to local infection,and most of them have a history of eating together.All these are of great significance for accurate prevention and control of pandemics.