2017-2020年北京市流行性感冒多次感染病例特征分析  

Characteristics of multiple infections of influenza in Beijing during 2017-2020 influenza seasons

作　　者：王超[1] 高燕琳[1] 史芸萍[1] 刘洋[1] 虎霄 谢春艳[1] 周滢[1] 李伟 李刚[1] Wang Chao;Gao Yanlin;Shi Yunping;Liu Yang;Hu Xiao;Xie Chunyan;Zhou Ying;Li Wei;Li Gang(Beijing Center for Disease Prevention and Control,Beijing 100013,China)

机构地区：[1]北京市疾病预防控制中心,北京100013

出　　处：《疾病监测》2022年第5期598-602,共5页Disease Surveillance

摘　　要：目的了解北京市2017—2020年流行性感冒(流感)病例中多次感染者所占比例及其特征。方法使用北京市2017—2020年的流感监测数据分析研究期间及各流感季多次感染病例的构成及三间分布情况。结果2017—2020流感季北京市共有18637例流感病例为多次感染的流感病例(占病例数的4.13%),单个流感季中多次感染者所占比例在0.10%~0.93%之间。多次感染病例的变化趋势与流感总报告病例数的变化一致。在初次感染的第120天、第285天、第375天、第450天和第725天出现5个再次感染的高峰。单因素分析发现性别、年龄、职业(人群分类)和各行政区的人群之间出现多次感染的比例存在统计学差异,其中男性,12岁及以下,幼托儿童、散居儿童、医务人员和学生,朝阳区、海淀区、昌平区、西城区和通州区出现多次感染的比例较高。结论北京市流感报告病例中多次感染的病例占比较高,且不同时间、地区和人群多次感染的情况存在较大差异。Objective To analyze the proportion and epidemiological characteristics of multiple infections of influenza in Beijing during 2017-2020 influenza seasons.Methods The composition and distribution of multiple infection cases were analyzed by using the surveillance data of influenza in Beijing from 2017 to 2020.Results During 2017-2020 influenza seasons,18637 multiple infections were reported(accounting for 4.13%),and the proportion of multiple infections in a single influenza season ranged from 0.10%to 0.93%.The trend of multiple infection cases was consistent with the change of the total number of influenza.There were five peaks of reinfection on the 120th,285th,375th,450th and 725th day since the first infection.Univariate analysis found that there were significant differences in the proportion of multiple infections among gender,age groups,occupation and living districts.And the proportion of multiple infections was higher in male,12 years old and below,nursery children,scattered children,healthcare providers and students,Chaoyang,Haidian,Changping,Xicheng and Tongzhou districts.Conclusion There were many multiple influenza infections in Beijing,and great differences in multiple infections could be found at different times,regions and populations.

关 键 词：流行性感冒 多次感染 监测 流行特征 

分 类 号：R211[医药卫生—中医学] R511.7