云南省德宏州2020—2021年新冠肺炎流行特征分析  

Epidemiological characteristics of COVID-19 in Dehong Prefecture,Yunnan,2020-2021

作　　者：刘爱聪[1] 冯凯 刘晓强[2] 岳太科[1] LIU Aicong;FENG Kai;LIU Xiaoqiang;YUE Taike(Department of Infectious Disease Control,Dehong Center for Disease Control and Prevention,Dehong,Yunnan 678400,China;不详)

机构地区：[1]德宏州疾病预防控制中心传染病控制科,云南德宏678400 [2]云南省疾病预防控制中心

出　　处：《中国国境卫生检疫杂志》2023年第5期502-507,共6页Chinese Journal of Frontier Health and Quarantine

摘　　要：目的 了解云南省德宏州新冠肺炎感染情况,分析常态化疫情防控下新冠肺炎的流行特征,为下一步更好地防控疫情提供参考。方法 从中国疾病预防控制传染病监测系统下载2020—2021年云南省德宏州报告的新冠肺炎个案数据,采用描述性流行病学方法描述新冠肺炎病例的三间分布特征。结果 2020—2021年德宏州辖区医疗机构累计报告新冠病毒感染者(包含确诊病例和无症状感染者)1 348例,无死亡病例。其中确诊病例1 176例,占云南省64.72%,以境外输入为主,占75.00%;临床分型中轻型和普通型分别占51.11%和47.28%;报告无症状感染者172例。累计报告聚集性/暴发疫情14起,由缅甸疫情输入导致本地感染暴发的疫情12起,占85.71%;省外输入2起,占14.29%。全年均有感染者,无明显季节性;地区分布以瑞丽市报告数最多,占93.99%;16~40岁感染者占79.90%,男女性别比为2.28∶1;境外输入感染者以户籍地为其他省籍人员最多,821例,占86.51%;本地感染者以德宏州籍人员最多,180例,占45.11%。截至2022年2月3日,所有病例全部治愈出院,治愈时间中位数为21.04 d。结论 德宏州新冠病毒感染者中输入性感染者构成比较高,主要输入国是缅甸,瑞丽为主要输入地区。德宏州持续境外输入散发、本土多点散发甚至局部聚集性疫情暴发的风险极高。Objective To understand the situation of COVID-19 infection in Dehong Prefecture,Yunnan Province,and to analyze the epidemic characteristics of COVID-19 under normal epidemic management,so as to provide reference for better prevention and control of the epidemic in the next step.Methods The data of COVID-19 reported cases was download from China Infectious Disease Surveillance System for Disease Control and Prevention in 2020-2021.Descriptive epidemiological methods were used to collate and plot the data to describe the distribution characteristics of the three dimensions.Results From 2020 to 2021,a total of 1 348 SARS-CoV-2 infected persons(including confirmed cases and asymptomatic infected persons) were reported by medical institutions in Dehong Prefecture,with no dead case.Among them,1 176 cases were confirmed cases,accounted for 64.72% of the total cases in Yunnan,mainly imported from abroad accounted for 75.00%.The clinical types were mostly mild and common,accounted for51.11% and 47.28%.172 asymptomatic cases were reported.A total of 14 clusters/outbreaks occurred,of which 12epidemic(85.71%) were imported from Myanmar and 2 epidemic(14.29%) were imported from outside Yunnan province.The infected persons were reported throughout the year,without obvious seasonality.In terms of regional distribution,Ruili city had the most reports,accounted for 93.99%.The infections of 16 to 40 years old accounted for 79.90% of the total,and the male to female gender ratio was 2.28:1.Most of the imported infections were from other provinces(821 cases,86.51%),and most of the local infections were from Dehong Prefecture(180 cases,45.11%).By February 3,2022,all the cases were cured and discharged,and the median cure time was 21.04 days.Conclusion The proportion of imported infected persons was relatively high,and the main import country was Myanmar,Ruili was the main import area.Dehong Prefecture was at high risk of continuous imported,local multi-point and even local cluster outbreaks.

关 键 词：新冠肺炎 流行特征 描述性分析 

分 类 号：R181.1[医药卫生—流行病学]