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目的分析湖南省2010-2015年流感流行特征,为湖南省流感防制提供科学依据。方法对湖南省2010-2015年流感样病例(ILI)报告数据及病原学监测数据进行分析。结果湖南省2010-2015年流感样病例百分比(ILI%)为3.68%~5.35%之间;全年出现冬春季12月-次年2月和夏季5-7月两个流行高峰;儿内科急诊的ILI%最高,为10.45%,0~14岁ILI数占87.59%;分离毒株分别为季节性H3N2占40.29%、新甲型H1N1亚型毒株占23.32%、B型Yamagata系占21.33%、B型Victoria系占14.93%,各型流感交替成为优势型别。结论湖南省2010-2015年流感疫情平稳,每年有冬春季和夏季两个流行高峰,A、B型流感交替成为优势型别。
Objective To analyze the epidemic characteristics of influenza in Hunan Province from 2010 to 2015 and provide a scientific basis for the prevention and control of influenza in Hunan Province. Methods Influenza-like illness (ILI) reported data and pathogen surveillance data from 2010 to 2015 in Hunan Province were analyzed. Results The percentage of ILI% in Hunan Province during 2010-2015 ranged from 3.68% to 5.35%. There were two epidemic peaks in December, February, and May, The ILI% was the highest, accounting for 10.45% and 87.59%, respectively. The isolates were seasonal H3N2 accounting for 40.29%, the new type A H1N1 subtype 23.32% and the type B Yamagata 21.33% , B-type Victoria Department accounted for 14.93%, all types of influenza alternate dominant type. Conclusions In 2010-2015, the epidemic of influenza in Hunan Province was stable. There were two epidemic peaks in winter, spring and summer respectively. Influenza A and B were the predominant types.