2008-2010年福田区流感暴发疫情流行病学分析

目的了解深圳市福田区2008-2010年流感暴发疫情特点,为开展流感防治工作提供依据。方法对福田区2008-2010年流感暴发疫情处理资料进行描述性分析。结果 2008-2010年福田区共报告发生流感（疑似流感）暴发疫情100起,累计报告病例795例,其中甲型H1N1流感28起,A型流感18起,B型流感40起。平均罹患率为4.52%。首例发病至报告间隔时间平均为3.78d。流感暴发疫情时间分布全年呈现两个发病高峰（3-6月和9月）,甲型H1N1、A型和B型流感病毒全年交替出现,9月流感活动高峰期的优势毒株为甲型H1N1流感病毒。暴发疫情主要集中在小学,共报告63起,发病数521例,占发病总数的65.53%。结论学校是易发生传染病暴发的场所,应重点加强学校卫生工作,预防控制流感暴发疫情的发生。

Epidemiologic characteristics of influenza outbreaks in Futian district of Shenzhen in 2008-2010

Objective To describe and analyze the prevalence characters of flu outbreaks in Futian district from 2008 to 2010. Method Descriptive epidemiological method was applied to analyze characteristics of flu outbreaks. Results It was found that 100 influenza outbreaks involving in 975 eases were reported, of which the outbreaks of flu virus of H1N1, type A and type B were 28,18 and 40, respectively. The average prevalence is 4.52%. The average spacing interval of initial case and reporting is 3.78 days.The outbreak peak is from March to June and September,the influenza H1N1 ,A and B are alternating throughout the year,and the peak of September was mainly caused by influenza H1N1.The outbreaks mainly occurred in primary schools,in which 63 outbreaks were reported involving 521 cases,accounting for 65.53% of the total number of incidence. Conclusions Influenza outbreaks are common in sehools.h is necessary to strengthen the health intervention in school to prevent and control the outbreaks of influenza.