2008—2011年鄂州市水痘流行病学分析

Epidemiological analysis of varicella in Ezhou City from 2008-2011

目的了解2008—2011年鄂州市水痘流行特征,为水痘预防控制提供科学依据。方法采用描述流行病学方法对鄂州市2008—2011年水痘流行特征进行分析。结果 2008—2011年鄂州市共报告水痘病例1 823例,年均发病率为44.89/10万。4—7和11—12月是发病高峰,分别占总报告发病数的50.96%和24.90%。发病主要集中在14岁以下幼托儿童和学生,共报告病例1 653例,占报告发病总数的90.67%。其中,1～6岁组发病最多,共报告发病1 018例,占报告发病总数的55.84%。4 a间,鄂州市共报告水痘突发公共卫生事件2起,均发生在农村学校。结论水痘具有明显季节性发病高峰。学校易发生水痘暴发流行,是预防控制的重点。

[Objective]To understand the epidemic characteristics of varicella in Ezhou City from 2008-2011,and provide scientific basis for its prevention and control.[Methods]Descriptive epidemiological method was used to analyze the varicella data in Ezhou City from 2008 to 2011[Results]A total of 1 823 cases of varicella were reported in Ezhou City from 2008-2011,with average annual incidence of 44.89/100 000.The peak incidence appeared in April – July and December – November which occupied 50.96% and 24.90% of total cases respectively.Most patients were the students and kindergarten children aged below 14 years with the number of 1 653 cases which accounted for 90.67% of total cases.Children aged 1-6 years occupied 55.84%（1 018 cases）.Two incidents of public health emergency about varricela were reported in rural school of Ezhou City in recent 4 years.[Conclusion]Varicella has obviously seasonal peak incidence.School,which is prone to varicella outbreak,should be taken as important prevention and control point of varicella.