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目的分析2007～2008年新疆流行性感冒(流感)流行特征和流感病毒优势株的情况。方法收集、分析监测哨点医院流感样病例及实验室病原学资料,用细胞培养分离并用血球凝集抑制试验对流感病毒进行分型。结果监测哨点医院2007～2008年流感样病例处于较为平稳的水平,无明显的流行高峰,病例相对集中在2007年12月～2008年1月,此监测年度无疫情暴发报告;共收集流感样病例标本589份,分离病毒60株,阳性率为10.19%;其中B(Yamagata)型52株(86%),H3N2亚型7株(12%),H1N1亚型1株(2%)。结论2007～2008年新疆流感活动较为平稳,流行毒株以B(Yamagata)型病毒为主,并有向H3N2亚型转化的趋势。
Objective To analyze the epidemiological characteristics of influenza (influenza) and predominant influenza strains in Xinjiang from 2007 to 2008. Methods Influenza-like cases and laboratory etiology in sentinel hospitals were collected and analyzed. Influenza virus was isolated by cell culture and typed with hemagglutination inhibition test. Results The surveillance of sentinel hospitals during 2007 and 2008 showed that the influenza-like cases were at a relatively stable level with no obvious epidemic peak. The cases were relatively concentrated from December 2007 to January 2008, and no outbreaks were reported in this monitoring year. Influenza samples There were 589 cases and 60 isolates with the positive rate of 10.19%. Among them, 52 (86%) were B (Yamagata) strains, 7 (12%) were H3N2 subtypes and 1 (2%) were H1N1 subtypes. Conclusion The flu activity in Xinjiang from 2007 to 2008 was relatively stable. The strains of epidemic strains were mainly Yamagata virus B, and they were transformed into H3N2 subtypes.