成都市2010-2013年流感监测分析  

Analysis on influenza surveillance in Chengdu(2010-2013)

作　　者：张亚兰[1] 岳勇[1] 杨磊[1] 奚川[1] 

机构地区：[1]成都市疾病预防控制中心,成都610041

出　　处：《公共卫生与预防医学》2015年第2期8-11,共4页Journal of Public Health and Preventive Medicine

摘　　要：目的了解成都市2010-2013年流感活动状况,为制定流感防制策略提供依据。方法通过疾病监测信息报告管理系统、突发公共卫生事件报告管理信息系统和中国流感监测信息系统收集流感及流感样病例(ILI)监测资料,对流行病学、病原学以及流感暴发疫情监测结果进行分析。结果成都市ILI在冬春和夏季有较明显的就诊高峰。报告流感暴发疫情2起,均发生在学校。在3 768份ILI标本核酸阳性率为21.79%;共分离到流感毒株487株,分离率7.62%(487/6 390)。成都市2010-2013年流感毒株亚型为甲型H1N1流感、H3型和B型交替流行,且哨点医院ILI%与标本核酸检测阳性率高峰时间基本吻合,二者呈正相关(r=0.408,P<0.001)。结论提示成都市ILI流行强度与流感病毒活动趋势一致,且成都市流感防制工作需要在冬春以及夏季加强。Objective To provide a basis for influenza prevention by understanding the epidemiological characteristics of influenza in Chengdu city.Methods Epidemilogy,etiology and outbreaks of influenza were analyzed by collecting data on influenza-like illness（ILI） and influenza cases through the national disease reporting system,emergency public reporting system and influenza surveillance system.Results ILI peaked distinctly between winter and spring and during the summer.Two outbreaks of influenza were reported in November 2013,occurring within schools.Out of 3 768 ILI cases,the positive rate of nucleic acid was 21.79%.There were 487 strains of virus isolated from 6 390 cases,with an isolation rate of 7.62%.The H1N1 pdm,H3 and B sub-type of influenza were alternately prevalent from 2010 to 2013.Spearman correlation analysis indicated a positive correlation between the ILI rate and positive rate of etiology monitoring（r = 0.408,P〈0.001）.Conclusion The ILI prevalence was consistent with the trend of influenza virus activity,and flu prevention should be strengthened between winter and spring and during the summer.

关 键 词：流感 监测 病原学 

分 类 号：R181.8[医药卫生—流行病学]