摘要
【目的】对1976-2017年徐汇区流感样病例(ILI)监测数据及病毒分离与鉴定结果进行分析,探讨流感病毒病原学分型及流行特征。【方法】分析1976-2017年上海市徐汇区流感监测哨点医院ILI监测资料和2005-2017年徐汇区疾病预防控制中心流感病毒病原学检测结果。【结果】1976-2017年的绝大多数年份中,全年有2个峰,即12月至次年1月冬季流行高峰期和7、8月份夏季流行高峰期。2004-2017年,各年发病率居于首位的均为25岁~年龄组;2004-2011年,15岁~年龄组与60岁以上年龄组交替居于第2位;2012-2017年,60岁以上年龄组始终居于第2位。0岁~和5岁~组自2008年以后的构成比明显下降。2005-2017年流感病原学检测结果显示,A型和B型毒株多为交替出现,多数年份于6月前后毒株类型发生改变,2007年B型毒株曾出现于夏季,2010年之后B型毒株多见于冬季。2009-2017年ILI就诊百分比高峰和病毒检测阳性率高峰基本吻合。【结论】徐汇区1976-2017年间ILI呈现冬季和夏季2个流行高峰,且夏季高峰流行强度高于冬季高峰,A型和B型毒株交替呈规律性变化,多于6月前后发生改变。25岁~年龄组占ILI构成比首位。
[Objective]To analyze the epidemiologic and laboratory surveillance data from Xuhui District Central Hospital in 1976 to 2017,and to describe the long-term trend and epidemiological characteristics of influenza-like illness(ILI)epidemics in Xuhui district.[Methods]The surveillance data on ILI in the influenza surveillance sentinel hospitals in Xuhui District of Shanghai from 1976 to 2017 were collected and analyzed,and the results of isolation and identification of influenza viruses in the CDC of Xuhui District from 2005 to 2017 were reviewed and analyzed.[Results]In most years from 1976 to 2017,there were two peaks of ILI,one was the winter epidemic peak from December to January,and the other was the summer epidemic peak in July and August.From 2004 to 2017,the top age group each year was 25-year-old group;from 2004 to 2011,15-year-old group and 60-year-old group were alternately in the second place;from 2012 to 2017,60-year-old group was always in the second place.The constituent ratio of the 0 to 5-year-old group decreased significantly after 2008.The results of influenza etiology test from 2005 to 2017 showed that most strains of influenza A and B appeared alternately,and most of them changed around June.In 2007,B strains appeared in summer,and after 2010,B strains mostly appeared in winter and spring.The peak rate of influenza like illness reached the peak of positive rate of virus detection from 2009 to 2017.[Conclusion]From 1976 to 2017,there were two epidemic peaks of influenza like illness in winter and summer,and the epidemic intensity in summer was higher than that in winter.A and B strains alternated regularly.The 25-year-old group was in the first place of ILI proportion.
作者
陈远方
刘景壹
赵雪涛
李申生
张俊婕
孙晓冬
CHEN Yuan-fang;LIU Jing-yi;ZHAO Xue-tao;LI Shen-sheng;ZHANG Jun-jie;SUN Xiao-dong(Xuhui District Center for Disease Control and Prevention,Shanghai 200237,China;Shanghai Municipal Center for Disease Control and Prevention,Shanghai 200336,China)
出处
《上海预防医学》
CAS
2019年第9期784-787,共4页
Shanghai Journal of Preventive Medicine
基金
上海市徐汇区医学科研课题(SHXH201337)
关键词
流行性感冒
流感样病例
监测
流行病学特征
influenza
influenza-like illness
surveillance
epidemiological characteristics
