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目的对邢台市2014年流行性感冒(简称流感)监测结果进行分析,了解流感的流行趋势、病原学变化规律,为以后流感预防控制工作提供科学依据。方法哨点医院对流感样病例(ILI)进行监测,并按要求采集ILI咽拭子标本运送至流感监测网络实验室,实验室在24 h内采用实时反转录聚合酶链反应(Real-time RT-PCR)法进行核酸检测,并完成流感病毒的分离鉴定。结果 2014年邢台市流感监测哨点医院共监测门、急诊就诊病例120 122例,ILI 2 565例。病例以25岁~年龄组为主(35.32%),60岁~年龄组最少(7.72%),其中0岁~和25岁~年龄组所占比例较大。2014年共检测ILI标本1 336份,核酸阳性328份,阳性率24.55%。其中B型流感病毒核酸阳性75份,A型H3N2阳性175份,新A型H1N1阳性77份,B型和新A型H1N1混合阳性1份。5岁~年龄组核酸阳性率最高。结论邢台市2014年流感均为散发,无流感疫情暴发。2014年邢台市流行的流感病毒有新A型H1N1、A型H3N2、B型,其中以A型H3N2流感流行为主。
Objective To analyze the monitoring results of influenza in 2014 in Xingtai City to understand the epidemic trend and pathogeny of influenza and provide a scientific basis for future prevention and control of influenza. Methods The sentinel hospital monitored influenza-like illness cases (ILI), and collected ILI throat swab samples as required to be sent to the influenza surveillance network laboratory. The real-time reverse transcription polymerase chain reaction (Real-time PCR) RT-PCR) method for nucleic acid detection, and the completion of influenza virus isolation and identification. Results In 2014, a total of 120 122 cases of emergency door visits and 5655 cases of ILI were monitored in Xingtai City Influenza Surgical Sentinel Hospital. The cases were mainly in the age group of 25 years old (35.32%), while those in the age group of 60 years old were the least (7.72%), of which the proportions were 0 to 25 years old. In 2014, a total of 1 336 ILI samples were detected, and 328 were positive for nucleic acid. The positive rate was 24.55%. Among them, 75 were positive for type B influenza virus, 175 were type A H3N2 positive, 77 were new type A H1N1 positive and 1 were positive for type B and new type A H1N1. 5 years old ~ the highest positive rate of nucleic acid. Conclusion All of the flu in Xingtai City were distributed in 2014, with no outbreak of flu. 2014 Xingtai City, the prevalence of influenza viruses have new type A H1N1, type A H3N2, type B, of which the type A H3N2 influenza epidemic.