2008—2010年本溪市流行性感冒监测结果分析

Analysis on Monitoring Results of Influenza in Benxi City during 2008-2010

目的了解本溪市流行性感冒(流感)流行规律和特征,为今后的流感防控工作提供科学依据。方法统计2008—2010年度本溪市流感监测哨点医院报告的流感样病例(ILI)就诊比例,并采集ILI标本进行病原学检测,对监测结果进行整理、分析。结果 2008—2010年2个监测周期中,流感监测哨点医院报告的ILI%分别为2.53%和3.16%,采集的ILI标本病毒分离阳性率分别为3.08%和10%,不同时期优势型别不同,2008年以季节性流感H1N1型为主,2009年以甲型H1N1流感病毒为主,2010年以B型和季节性流感H3N2型为主。结论 ILI%的变化能够较好地反映本溪市流感病毒的活动情况,不同监测年度流感病毒流行优势毒株不断发生变化,5岁以下婴幼儿是流感侵袭的主要人群。

[Objective]To understand the epidemic law and features of influenza in Benxi city,provide the scientific basis for future prevention and control of influenza.[Methods]The visiting proportion of influenza-like illness（ILI%） reported by influenza monitoring spots hospitals in Benxi from 2008 to 2010 were collected,pathogenic detection was conducted in ILI samples,and the monitoring results were arranged and analyzed.[Results]In two monitoring cycles from 2008 to 2010,the ILI % reported by Benxi influenza monitoring spots hospitals was 2.53% and 3.16% respectively,and the positive rate of virus isolation was 3.08% and 10% respectively.The dominant types were different in different periods,which included seasonal influenza H1N1 in 2008,H1N1（A） in 2009,type B and seasonal influenza H3N2 in 2010.[Conclusion]ILI % change can reflect the epidemic situation of influenza virus in Benxi city.The dominant strains of influenza change constantly in different monitoring years,and children under 5 years old are the high risk population of influenza.