四川省新冠肺炎密切接触者跨省协查情况分析

Characteristics of trans-provincial close contacts of patients with coronavirus disease 2019 in Sichuan province

目的分析四川省跨省协查新冠肺炎密切接触者(密接者)的相关特征,以便更好地开展跨省协查工作,为后续疫情防控提供参考。方法收集四川省2020年1月20日-3月13日密接者跨省协查函的相关数据,共有4276名密接者。统计密接者的分布特点、接触途径等信息并进行分析。结果四川相关跨省密接者平均年龄为(36.43±16.82)岁,以青、中年为主,主要分布在湖北(898人,28.94%)、重庆(687人,22.14%)、成都(395人,33.67%)等地,接触途径主要为同乘交通工具(2506人,58.61%)。结论跨省密接者主要为流动人群,主要接触途径为同乘交通工具,主要分布在疫情高发地区以及毗邻地区。

Objective To analyze the characteristics of trans-provincial close contacts of patients with coronavirus disease 2019(COVID-19)in Sichuan province and to provide evidences for effective inter-province surveys on close contacts of COVID-19 patients.Methods We collected all data of inter-province surveys on 4276 trans-provincial close contacts of COVID-19 patients in Sichuan province during the period from January 20 to March 13,2020 and analyzed the data with descriptive statistics.Results The average age of the trans-provincial close contacts was 36.43±16.82 years.Of all the trans-provincial close contacts,28.94%(898)and 22.14%(687)were immigrants in Sichuan province from Hubei province and Chongqing city;while,33.67%(395)were migrants from Chengdu-the capital city of Sichuan province to other provinces.The majority(58.61%,2506)of the trans-provincial close contacts were exposed to COVID-19 patients due to taking common vehicles with the patients during traveling or commute.Conclusion In Sichuan province,the transprovincial close contacts of COVID-19 patients were mainly migrant people from epicenter regions or their adjacent areas and experienced exposure due to taking common vehicles with the patients.