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目的对贵州省2008-20O9年流行性感冒的监测结果进行分析,了解流感的流行趋势,为流感防控提供科学依据。方法对哨点医院就诊的流感样病例(ILI)进行流行病学和病原学监测,以及对集中发热疫情进行监测。结果 2008年哨点医院门诊ILI就诊比例为2.36%,2009年ILI就诊比例为9.14%;2008年流感病毒以乙型为优势株;2009年以甲型为优势株,尤以甲型H1N1居多。2009年流感暴发疫情较2008年增多,疫情主要集中在学校。结论流感病毒流行优势株由乙型转为甲型,做好流感监测和预测预报。
Objective To analyze the screening results of 2008-2009 in Guizhou Province for understanding the prevalence of influenza and provide a scientific basis for prevention and control of influenza. Methods Epidemiological and etiologic surveillance of influenza-like illness (ILI) in sentinel hospitals and monitoring of the concentrated fever were performed. Results The outpatient ILI treatment rate in sentinel hospital in 2008 was 2.36%. In 2009, the ILI treatment rate was 9.14%. In 2008, the influenza A virus belonged to type B strain. In 2009, the type A strain was predominant, with the majority being H1N1. The outbreak of influenza outbreak in 2009 increased compared with 2008, with the epidemic mainly concentrated in schools. Conclusion Influenza pandemic influenza strains from type B to type A, good influenza surveillance and forecast.