2014—2021年深圳市流感暴发疫情流行特征分析  

Epidemiological characteristics of influenza outbreaks in Shenzhen, 2014-2021

作　　者：王昕[1] 房师松[1] 武伟华[1] 刘慧[1] 孙颖 唐秀娟[2] Wang Xin;Fang Shisong;Wu Weihua;Liu Hui;Sun Yin;Tang Xiujuan(Institute of Pathogen Biology,Shenzhen Center for Disease Control and Prevention,Shenzhen 518055,China;Institute for Infectious Disease Prevention and Control,Shenzhen Center for Disease Control and Prevention,Shenzhen 518055,China)

机构地区：[1]深圳市疾病预防控制中心病原微生物检测所,518055 [2]深圳市疾病预防控制中心传染病预防控制所,518055

出　　处：《国际病毒学杂志》2023年第6期467-471,共5页International Journal of Virology

基　　金：深圳市科创委基础研究项目(JCYJ20180307102005105);深圳市科创委可持续发展专项(KCXFZ20211020172545006)。

摘　　要：目的对2014—2021年深圳市流感暴发疫情流行特征进行分析,为流感防控提供参考。方法收集全市2014—2021年的流感暴发疫情资料进行分析。结果2014—2021年深圳市共报告1581起流感暴发疫情。发病总人数为14427人,平均罹患率为12.2%。流感疫情报告最多的月份是12月和3月,分别为405起(占25.6%)和267(占16.9%)起。冬季(704起,占44.5%)和春季(533起,占33.7%)是流感疫情的高发季节。1581起流感疫情分别由乙型Victoria系(468起,29.6%),A(H3N2)亚型(401起,25.4%),乙型Yamgata系(364起,23.0%),甲型H1N1亚型(303起,19.2%)和混合感染(45起,2.8%)引起。乙型流感引起疫情(占52.6%)多于甲型流感(占44.6%)(χ^(2)=20.743,P<0.01)。结论2014—2021年深圳市流感疫情的高发季节是冬季和春季,乙型流感引起的疫情起数多于甲型流感。Objective To analyze the epidemiological characteristics of influenza outbreaks in Shenzhen in 2014-2021,so as to provide evidences for the prevention and control of influenza.Methods The data of influenza outbreaks in the city from 2014 to 2021 were collected and analyzed.Results From 2014 to 2021,a total of 1581 influenza outbreaks were reported,involving 14427 cases in total.The average incidence rate was 12.2%.The highest numbers of outbreak were 405(accounting for 25.6%)in December and 267(accounting for 16.9%)in March,respectively.The high incidence seasons of influenza outbreaks were winter(704 outbreaks,44.5%)and spring(533 outbreaks,33.7%).The 1581 influenza outbreaks were caused by influenza B Victoria-lineage virus(468,29.6%),influenza A(H3N2)virus(401,25.4%),influenza B Yamagata-lineage virus(364,23.0%),2009 pandemic influenza A(H1N1)virus(303,19.2%),and mixed infections(45,2.8%),respectively.There were more outbreaks caused by influenza B viruses(52.6%)than those caused by influenza A viruses(44.6%)(χ^(2)=20.743,P<0.01).Conclusions The high incidence seasons of influenza outbreaks in Shenzhen were winter and spring from 2014 to 2021.Influenza B viruses caused more influenza outbreaks than influenza A viruses.

关 键 词：流感 疫情 监测 

分 类 号：R511.7[医药卫生—内科学] R181.8[医药卫生—临床医学]