摘要
目的分析2009-2010年重庆市流感流行特征和监测结果,为控制流感提供科学依据。方法收集重庆市流感疫情资料、流感样病例监测资料、病原学资料和暴发疫情资料,并对资料进行分析。结果 2009-2010年重庆市出现流感流行,流行高峰集中在2009年9～10月,流行优势毒株为新甲型H1N1亚型,2010年1月以来则以季节性B型为主。城区监测点病毒分离阳性率显著高于农村监测点(χ2=133.04,P<0.001)。聚集和暴发疫情主要集中在学校(96%),流感疫情高发时间和病原学检测结果与监测情况一致。结论甲型H1N1流感在2009年出现流行并成为优势株,进入2010年B型流感活动加强,应及时加强流感样病例监测和病原学监测工作,防止出现流行。
Objective To analyze the epidemiological features of influenza in Chongqing during 2009-2010 and to provide scientific evidence to contro1 influenza.Methods Surveillance data such as the number of influenza cases,influenza-like illness,viral isolation and clustering of influenza outbreak were analyzed.Results A new H1N1 influenza epidemic occurred in Chongqing during 2009-2010,with a peak from September to October.Influenza B virus was the major strain since January 2010.The positive rate of viral isolation in the urban monitoring sites was higher than the rural site（χ2=133.04,P0.001）.About 96% of influenza-like illness was found in schools.The results of laboratory examination coincided with surveillance data and the peak period of influenza.Conclusion The influenza A（H1N1） was the major epidemic strain in 2009.Activity of influenza B virus was increase in 2010.Surveillance of influenza-like illness and isolation of influenza virus should be strengthened for prevention of the influenza epidemic.
出处
《热带医学杂志》
CAS
2010年第11期1319-1321,1343,共4页
Journal of Tropical Medicine
基金
重庆市科技攻关计划项目(CSTC
2009AB5176)
关键词
甲型H1N1流感
流感样病例
监测
病毒分离
inf1uenza A（H1N1）
influenza-like illness
surveillance
virus isolation
