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[目的]探讨济南市甲型H1N1流感流行特征并提出防治措施。[方法]对济南市2009年甲型H1Nl流感疫情资料进行分析。[结果]2009年(5～12月)合计确诊甲型H1N1流感病人460例,其中重症病例60例,危重病例11例,死亡4例,发病率为7.47/10万,死亡率为0.06/10万,病死率为0.87%。发生6起暴发疫情,其中5起在学校,合计发病67例,暴发点人群罹患率为2.50%～75.00%。年发病率,男性为8.40/10万,女性为6.52/10万(P<0.01);10个县(市、区)在0.83/10万～25.45/10万;发病率最高的年龄是10～19岁(25.45/10万。全部病例中,学生占51.96%;11～12月发病的占67.39%,包括4例死亡病例。检测流感样病人咽拭子标本1575份,甲型H1NA流感核酸阳性率为44.00%,鉴定为甲型H1N1流感的占47.19%。[结论]2009年济南市甲型H1N1流感疫情处于低流行水平,发病高峰在11～12月。
[Objective] To explore the epidemic characteristics of Influenza A (H1N1) in Jinan and to put forward prevention measures. [Method] The data of 2009 H1N1 influenza epidemic in Jinan City were analyzed. [Results] A total of 460 confirmed cases of Influenza A (H1N1) were diagnosed in 2009 (May to December), including 60 critically ill patients, 11 critically ill patients and 4 deaths, with a morbidity of 7.47 / 100 000 and a mortality rate of 0.06 / 10 The case fatality rate was 0.87%. 6 outbreaks occurred, of which 5 were in school, with a total incidence of 67 cases, the outbreak of the crowd attack rate of 2.50% to 75.00%. The annual incidence rate was 8.40 / 100000 in males and 6.52 / 100000 in females (P <0.01). The highest incidence rates in 10 counties (cities and districts) ranged from 0.83 / 100000 to 25.45 / 19 years old (25.45 / 100000. In all cases, students accounted for 51.96%; 11 ~ December incidence of 67.39%, including 4 deaths .To detect influenza-like patients throat swab specimens 1575, H1N1 influenza nucleic acid positive Rate was 44.00%, and 47.19% were identified as Influenza A (H1N1). [Conclusion] The outbreak of Influenza A (H1N1) in Jinan was at a low prevalence level in 2009 with the peak incidence in 11 ~ 12 months.