论文部分内容阅读
目的了解2009~2010年度济南市流感流行特征及流感流行优势毒株的分布,为流感防治工作提供科学依据。方法对济南市2009~2010年度流感监测哨点医院流感样病例、病原学监测结果及暴发疫情资料进行描述性分析。结果济南市2009~2010年流感监测哨点医院流感样病例就诊百分比为3.69%,较上年度大幅上升,呈现春、夏、冬季三个流行高峰,其中冬季高峰较往年提前,且持续时间最长。流感哨点医院病原学监测结果呈现多种流感病毒交替或混合流行的特点,有明显的季节性分布特点。不同人群流感病毒核酸阳性率及各型别阳性率不同,其中15~24岁年龄组流感病毒阳性率及甲型H1N1阳性率最高。全市报告37起流感样病例暴发疫情,为济南市历史上报告疫情最多年份。结论2009~2010年度济南市流感活动较强,呈现春、夏、冬季三个流行高峰;流感流行优势毒株随季节变化而明显不同。
Objective To understand the epidemiological characteristics of influenza and the distribution of influenza prevalent strains in Jinan from 2009 to 2010 so as to provide a scientific basis for the prevention and control of influenza. Methods Descriptive analysis of influenza-like illness cases, etiological surveillance results and outbreak data were conducted in 2009 to 2010 influenza surveillance sentinel hospitals in Jinan City. Results The percentages of flu-like cases in the sentinel hospital of influenza surveillance from 2009 to 2010 in Jinan were 3.69%, up from the previous year, showing three prevailing peaks in spring, summer and winter, with the peak in winter earlier than previous years and the longest duration . Influenza sentinel hospital etiology monitoring results showed a variety of influenza virus alternating or mixed epidemic characteristics, there are obvious seasonal distribution characteristics. Influenza virus nucleic acid positive rate of different populations and different types of positive rates of different, of which 15 to 24 age group influenza virus positive rate and the highest positive rate of type A H1N1. The city reported 37 outbreaks of influenza-like outbreaks, the history of Jinan City, the highest reported years of history. Conclusion In 2009 and 2010, the flu activity in Jinan was strong, showing three epidemic peaks in spring, summer and winter. Influenza prevalence strains were significantly different with the seasons.