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目的对2009年浙江省衢州市流行性感冒(流感)监测结果进行分析,进一步了解流感病毒的流行趋势,探索流感流行规律,为制定流感防治措施提供科学依据。方法收集国家级哨点医院的流感样病例(ILI)资料、病原学分离检测结果和暴发疫情资料进行分析。结果 2009年衢州市ILI占门急诊就诊总数百分比(ILI%)为3.22%,波动在0.54%～6.68%之间;内科急诊ILI%最高,为11.19%,儿内科急诊ILI%最低,为0.77%;633份检测标本中,阳性375份,阳性率为59.24%。≥60岁年龄组阳性率最高;11月流感病毒分离率最高。甲型H1N1流感发病以学生为主,发病年龄主要集中在10～30岁人群;流感暴发疫情主要发生在学校,占94.44%。结论 2009年衢州市6-9月以季节性流感病毒为主,10-12月以甲型H1N1流感病毒为主。
Objective To analyze the surveillance results of flu in the city of Quzhou in Zhejiang Province in 2009 to further understand the epidemic trend of influenza virus and explore the epidemic rule of influenza and provide a scientific basis for the development of influenza prevention and control measures. Methods Influenza-like illness (ILI) data from national sentinel hospitals were collected, and the results of pathogen isolation and outbreak were collected for analysis. Results In 2009, the total ILI% of ILI accounted for 3.22%, fluctuating between 0.54% ~ 6.68%; the highest ILI% of medical emergency was 11.19%, the lowest ILI% of pediatric emergency was 0.77% ; Of the 633 test specimens, 375 were positive, the positive rate was 59.24%. The highest positive rate of ≥ 60 years old group; the highest isolation rate of influenza virus in November. Influenza A (H1N1) was mainly student-based. The age of onset was mainly between 10 and 30 years of age. Influenza outbreak mainly occurred in schools, accounting for 94.44%. Conclusion In 2009, Quzhou City was mainly affected by seasonal influenza virus from June to September. Influenza A (H1N1) virus was predominant in 10-12 months.