2014—2015年株洲市流感病原学监测结果分析

Pathogenic Surveillance of Influenza in Zhuzhou City,2014-2015

目的了解株洲市2014—2015年流感流行状况及毒株的型别分布,并分析其流行趋势,为制定预防控制措施提供科学依据。方法采集流感样病例的鼻咽拭子标本,采用传代狗肾细胞(MDCK)直接进行病毒分离,分离到的毒株采用血凝抑制(HI)法进行型别鉴定。结果 2014年株洲市流感实验室共收到流感样病例监测标本进行病毒分离的有1 219份,分离到毒株236株,阳性率为19.36%。2015年株洲市流感实验室共收到流感样病例监测标本进行病毒分离的有1 391份,分离到毒株138株,阳性率为9.92%。结论 2014—2015年株洲市流感样病例中,流行均以B型Yamagata系为主,流行季节为冬季、春季。

Objective To investigate the epidemiological characteristic of influenza（Flu） and the distribution of all types of influenza viruses in Zhuzhou city from 2014 to 2015,and to analyze the epidemic trend then provide reference for the prevention and control of influenza.Methods Throat swabs were collected from influenza-like illness cases,and the strains were isolated by Madin-Darby canine kidney（MDCK） cells,the types of influenza virus were identificated by hemagglutination inhibition（HI） method.Results A total of 1219 samples were collected from the influenza-like illness in Zhuzhou in2014,236 were identified as positive,The influenza rirus isolation was 19.36%.In 2015,a total of 1391 samples were collected from the influenza-like illness in Zhuzhou,138 were identified as positive,The influenza rirus isolation was 9.92%.Conclusion From 2014 to 2015 the prevailing strain was Yamagata,and the epidemic season was winter and spring.