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[目的]通过2005～2009年流感监测结果对吉林省流感的流行趋势、病原学变化特点进行分析、总结。[方法]收集及分析医院、暴发疫情监测及不明原因肺炎中流感病例的流行病学资料,用细胞培养法分离,血凝抑制法鉴定流感病毒。[结果]吉林省2005～2009年流感疫情平稳,以散发病例为主,12月份为发病高峰期,报告发生流感疫情1起;流行优势株每年均有改变。[结论]监测网络的敏感性还有待进一步提高,应加强对儿童、老年人及住院病例的监测。
[Objective] To analyze the epidemic trend and etiological characteristics of influenza in Jilin Province from 2005 to 2009 influenza surveillance results and summarize. [Methods] The epidemiological data of influenza cases in hospital, outbreak surveillance and pneumonia of unexplained pneumonia were collected and analyzed. Influenza virus was identified by cell culture method and hemagglutination inhibition method. [Results] The epidemic situation of influenza in Jilin Province was stable from 2005 to 2009, mainly in sporadic cases. In December, it was the peak of the incidence. The epidemic situation of influenza was reported from 1 year to the present. The epidemic dominant strains changed every year. [Conclusion] The sensitivity of monitoring network needs to be further improved. Monitoring of children, the elderly and inpatient cases should be strengthened.