吉林省2009-2010年甲型H1N1流感流行特征分析

Epidemiological Characteristic of Influenza A (H1N1) in Jilin Province 2009-2010

目的全面了解、掌握吉林省甲型H1N1流感流行特征情况,为科学制定本省甲型H1N1流感防控对策提供依据。方法应用SPSS分析软件,对本省甲型H1N1流感病例的三间分布,死亡病例、重症病例情况进行描述分析。结果甲型H1N1流感病例分布在全省9个地区,发病率最高的地区为长春市6.2/10万;病例80.1%集中在0～29岁;男女性别比为1.3∶1;学生约占总病例数的48.9%;重症病例136例,死亡病例16例,死亡病例中87.5%为高危人群。流感监测哨点医院检测出阳性标本1 864份,甲型H1N1流感病毒核酸阳性714份占阳性标本的38.3%。结论病例主要集中在大中城市;男性发病高于女性;年轻人较老年人更容易患甲型H1N1流感;学生是甲型H1N1流感的危险人群,重症病例和死亡病例集中发生在高危人群;监测数据与本省疫情流行趋势一致。

Objective To study the epidemiology characteristic of influenza A（H1N1） infection in Jilin province,and to provide scientific evidence for control and prevention of influenza.Methods SPSS software was used in statistical analysis.Epidemiology of H1N1 cases was described.Dead cases and severe cases were analyzed.Results H1N1 cases were found in all of the 9 districts of Jilin province.The incidence rate in Changchun（6.2 per 100,000） was highest.80.1% cases were in the age group of 0-29.The ratio of male/female was 1.3∶1.48.9% cases were students.136 cases were severe cases and 16 cases died.87.5% dead cases were among five high-risk groups.A total of 1 864 positive samples were detected in sentinel influenza surveillance hospitals.38.3%（714） of positive samples were H1N1.Conclusion Most of H1N1 cases are in cities.The incidence rate of male is higher than that of female.Young people are susceptible and students belong to high risk group.Severe cases and dead cases are from five high-risk groups.Monitoring data are consistent with the epidemic.