摘要
[目的]监测和分析无锡市流行性感冒(流感)的流行动态和病原学特征,为流感的预防控制提供科学依据。[方法]对2005年10月至2008年3月无锡市流感监测哨点的流感样病例(Influenza Like Illness,ILI)发病动态、流感病毒分离和爆发疫情资料进行监测和分析。[结果]2005年10月至2008年3月,无锡市共监测报告ILI病例37 998例,ILI占门诊病例总数的比(ILI%)平均为3.67%。采集咽拭子标本1 796份,分离出流感病毒395株,分离率为21.99%。ILI和ILI%的高峰期均为2005年12月、2006年3月、2007年7月,ILI、ILI%和流感病毒分离率三者的高峰相互吻合,并与流感优势毒株交替变化一致。ILI的年龄构成中14岁以下儿童占91.03%,学校是发生爆发流行的主要场所。[结论]我市流感病毒比较活跃,关注ILI动态、ILI%动态、毒株型别交替变化和新型毒株的出现,可以评价和预警流感流行情况。对儿童和学校等流感重点人群和场所,应在流行高峰前采取流感疫苗接种为主导的综合性预防措施。
[ Objective] To explore the characteristics and the changes of the dominant strains of influenza in Wuxi, to provide scientific basis for the prevention of influenza. [ Methods ] Data of influenza - like illness [ILI ] from monitoring sites in outpatients and the outbreaks of influenza irt year 2005 - 2008 were analyzed. [ Results ] From October 2005 to March 2008, there were 37 998 cases ofILI, which on average accounted for 3.67% of all the OPD patients. A total of 1 796 samples were collected, and 395 strains were identified for influenza virus with an average isolation rate of 21.99%. There were three peaks which occurred in December 2005, March 2006 and July 2007 respectively, and in these periods the number of ILI cases, the ratio of ILI in all outpatient visits and the isolation rates were higher than those in other periods. During the three high peak periods, the dominant strains changed accordantly. The percentage of ILI cases under 14 years was 91.03%. The main influenza outbreak place were schools. [ Conclusion] Three peaks of influenza were shown in Wuxi from year 2005 to 2008. The influenza virus has tendency of switchover to dominant strain. Vaccination as the leading in comprehensive measures should be taken to prevent influenza before the peak came especially in those key sites such as schools.
出处
《上海预防医学》
CAS
2009年第1期4-6,共3页
Shanghai Journal of Preventive Medicine
基金
2006年度无锡市科技局科技发展计划重大建设项目(CLE00617)
