2009-2012年陕西省临渭区水痘流行病学分析

Varicella in Linwei District of Shannxi,2009-2012

目的分析陕西省临渭区2009—2012年水痘的流行病学特征，为制订水痘预防控制措施提供科学依据。方法采用描述流行病学方法对2009—2012年临渭区疾病监测信息系统报告的水痘疫情资料进行分析。结果2009—2012年共报告556例水痘病例，年均发病率为15．46／10万，男女性别比为1．22：1；水痘发病高峰为5～6月和12月，城区病例占总发病数的65．09％，学生病例占总发病人群的60．61％；出现l起突发公共卫生事件，发生在农村1所小学。结论2009—2012年临渭区水痘发病人群主要为学生，学校是水痘事件发生的重要场所，加强学校水痘疫情监测，接种水痘疫苗是预防和控制水痘的有效措施。

Objective To analyze the epidemiological characteristics of varicella from 2009 to 2012 in Linwei district, Shannxi province and thus to provide scientific evidences for control and prevention measures. Methods Descriptive epidemiological analysis was conducted on the data of varicella collected from national disease reporting information system. Results The total cases of varicella were 556, with the average incidence of varicella of 15.46/105from 2009 to 2012; sex ratio of male to female was 1.22： 1. The peak season of varicella was from May to June and in December. Urban cases accounted for 65.09% and student cases accounted for 53.27% of the total. One public health emergency occurred during the period in a rural primary school. Condusion Students are the vulnerable population to be infected by varicella and thus pertinent measure towards schools should be strengthened.