苏州市古城区226例甲型H1N1流感病例流行病学特征分析

Epidemiological Characteristics Analysis of 226 Cases with Influenza A(H1N1) Infection in Suzhou Old Quarters

目的了解苏州市古城区2009年甲型H1N1流感病例的流行病学特征,为甲型H1N1流感预防控制提供科学依据。方法根据国家疾病监测信息网络直报系统的资料,应用描述性流行病学方法对苏州市古城区2009年诊断的226例甲型H1N1流感病例的流行病学特征进行描述。结果古城区甲型H1N1流感病例男性占51.8%,女性占48.2%;64.6%的病例集中在0～29岁年龄段;从职业构成看,学生发病数明显较多,占总病例数的34.1%;甲型H1N1流感流行高峰出现在9月初和11月中下旬;人口密集地区发病率相对较高。结论学生是甲型H1N1流感的危险人群,应当注重学校等场所的甲型H1N1流感的防控工作;流动人口的流感防控工作也不容忽视。

OBJECTIVE To study the epidemiological characteristics of cases with influenza A（HIN1） infection in Suzhou Old Quarters, and to provide the scientific evidence for control and prevention of influenza A（H1N1）. METHODS According to the National disease monitoring information network straight quote system information, the epidemiological characteristics of 226 cases with influenza A （H1N1） reported in Suzhou Old Quarters in 2009 were descriptively analyzed. RESULTS Of all the cases with influenza A（H1N1） in Suzhou Old Quarters, male cases accounted for 51.8% and female one accounted for 48.2%; 64.6% of the cases concentrated in the age range of 0 to 29 years; The occupational proportion showed that the majority of the cases were students, which accounted for 34.1% of the total; The peak of influenza A（H1N1） appeared in early September and 11 months late; The incidence of influenza A（H1N1） is higher in populated areas. CONCLUSIONS The students were the risk population for influenza A （H1N1）. Prevention and control of influenza A（H1N1）should be focused on schools; Pandemic Influenza of floating population can not be ignored.