Abstract:

Objective To understand the epidemiological characteristics of Japanese encephalitis(JE) in Baoshan city from 2005 to 2008 in order to provide a scientific basis for the control and prevention of the epidemic. Methods Descriptive epidemiological analysis was performed on the cases of JE reported in the area from 2005 to 2008. Results A total of 224 JE cases were reported in Baoshan city, 2005-2008, with the annual incidence being 1.70/10⁵, 2.68/10⁵, 2.46/10⁵, 2.35/10⁵, respectively in the years in sequence. It was seen that the incidence was highly sporadic in the individual years, with the peak incidence occuring from July to August, accounting for 63.84% of the total incidence. Children under the age of 10 were most frequently affected, constituting 76.79% of the total cases. There were 3 cases who died of the epidemic with a mortality of 1.34%. Conclusion The epidemic of JE was well under control in Baoshan city, but it is still needed to take comprehensive measures based on vaccination and mosquito control and prevention to make it better.

Key words: Japanese encephalitis, Epidemiological characteristics；Vaccination

摘要：

目的 了解保山市2005－2008年流行性乙型脑炎(乙脑)流行病学特征，为防治提供依据。 方法 对2005－2008年报告的乙脑病例进行描述性流行病学分析。结果 2005－2008年保山市共报告乙脑病例224例，各年发病率分别为1.70/10万、2.68/10万、2.46/10万和2.35/10万，各年皆呈高度散发状态。流行高峰为7－8月，占总发病数的63.84％。主要发病人群为10岁以下儿童，占发病总数的76.79％。死亡3例，病死率为1.34％。结论 保山市乙脑疫情得到了较好控制，但仍应加强预防接种、防蚊灭蚊为主的综合防治措施。

关键词: 流行性乙型脑炎, 流行特征, 预防接种