百色市2010—2014年流行性感冒监测分析

Analysis of influenza surveillance from 2010 to 2014 in Baise City

目的：分析百色市2010—2014年流行性感冒（流感）监测结果，为流感防制策略提供依据。方法采用实时荧光RT－PCR方法对采集的流感样病例（ ILI）咽拭子标本进行流感病毒核酸检测，运用描述性流行病学方法和spss16．0软件对数据进行统计分析。结果2010—2014年共采集ILI咽拭子标本5204份，流感病毒核酸阳性586份，阳性率为11．26％。5年中流感优势株交替变化，2010年以甲型、乙型及甲3型为主，2011年以甲型和乙型为主，2012年以乙型为主，2013年以新甲型H1N1和乙型为主，2014年以甲3型为主。0～14岁阳性人数占阳性总数的72．53％；男女阳性率无差异；高峰主要集中在春秋季节。暴发疫情6起，其中5起发生在中小学校。结论百色市流感监测及防控重点是春秋季节及14岁以下人群，密切关注流感毒株的流行趋势。

Objective To analyze the surveillance of influenza from 2010 to 2014 in Baise, so as to provide a basis for the prevention and control strategy of the disease. Me thods The RTFQ-PCR was carried out in detection of influnza virus nu-cleic acids in throat swabs from ILI.The descriptive epidemiolgy and soft ware spss16.0 was performed in a statistical anal-ysis of obtained data.Results A total of 5 204 throat swabs from ILI were collected from 2010 to 2014 , among these 586 cases were influenza virus nucleic acids positive with a positive rate 11.26%in ILI.The predominant virus strains were in a interchangeable mode in the five years, type A, B and A3 were in circulation in 2010, type A and B in 2011, type B in 2012, new type A H1N1 and B in 2013, and type A 3 in 2014,respectivelly.Pupil and children under 14 years age were the major influenznza targets with 72.53%in all the cases.There was no statistical difference in both of male and female cases.The epidemical peaks mainly occurred in spring and autumn, and six inluenza outbreaks were reported, five out-breaks occurred in primary and middle school.Conclusion The influenza surveillance should be particulally strengthened in population under 14 years age in spring and autumn, and a special attention focused on the circulative tendency for influ-enza virus strains in Baise City.