【摘要】 目的探讨2006～2010年云南省流感的流行特征,为制定流感防制策略提供科学依据。方法对2006～2010年云南省流感监测的流感样病例(ILI)监测资料、实验室检测结果、暴发疫情信息进行分析。结果 2006～2010年,全省哨点医院共报告的ILI%平均为3.56%,流行高峰为9月～次年3月。采集标本23618份,分离毒株785株,阳性率3.32%,优势株为B型(288株,36.69%)。2009～2010年检出哨点医院核酸阳性标本2394份,核酸阳性率为14.57%,主要型别为新甲H1N1型(1599份,66.80%)。2006～2010年全省共报告流感暴发疫情139起,均发生在中小学校。暴发疫情高峰发生在3～4月(63起,45.32%)和9月(37起,26.62%)。采集标本3952份,分离病毒314株,阳性率7.95%,优势株为B型(229株,72.93%)。2009～2010年检出暴发疫情核酸阳性标本1408份,核酸阳性率为42.84%,主要型别为新甲H1N1型(869份,61.72%)。结论 2006～2010年,云南省哨点医院和暴发疫情监测结果基本吻合,出现春季和秋季两个流感流行高峰,不同型别的毒株表现出交替占优势的特征,暴发疫情均发生在中小学校。更多还原

【Abstract】 OBJECTIVE To explore the epidemic characters of influenza in Yunnan Province from 2006-2010,and provide scientific basis for the prevention of influenza.METHODS The data of epidemiology and etiology of influenza-likeillness(ILI)and outbreaks of influenza in Yunnan Province in 2006-2010 were collected and analyzed.RESULTS By collecting the data of national influenza surveillance hospitals from 2006-2010,the average percentage of the number of ILI cases accounted for total outpatient was 3.56%,and the peaks of epidemic of influenza were from September to March in the next year.All the influenza surveillance hospitals in Yunnan Province collected 23 618 influenza specimens,and 785 influenza virus strains were obtained.The positive rate was 3.32%,and most of them were B subtype(288 strains,36.69%).2 394 nucleic acid positive specimens were obtained in 2009-2010,and positive rate was 14.57%.Most of them were A/H1N1 subtype(1 599 positive specimens,66.80%).There were 139 outbreaks of influenza from 2006-2010 in Yunnan Province.All the outbreaks of influenza occurred in primary and middle schools.The peak of outbreaks of influenza was in March to April(63 outbreaks,45.32%)and September(37 outbreaks,26.62%).3 952 influenza specimens were collected and 314 influenza virus strains were obtained,and with positive rate of 7.95%.Most of them were B type(229strains,72.93%).1 408 nucleic acid positive specimens were obtained from 2009-2010,and with the positive rate of 42.84%.Most of them were A/H1N1 subtype(869 positive specimens,61.72%).CONCLUSION The peak of hospital surveillance and the peak of outbreaks of influenza was accordant.The peaks of epidemic of influenza in 2006-2010 were in Spring and Autumn.Different types of strain predominated alternatively,and the outbreaks of influenza were mainly occurred in primary and middle schools.更多还原