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目的了解山西省运城市2006年流行性乙型脑炎(乙脑)疫情的流行病学特点,探讨乙脑发病的年龄特征,为预防控制乙脑提供基础资料。方法分析法定传染病报告系统数据及现场流行病学调查资料,现场快速评估乙脑疫苗接种率,乙脑病毒IgM抗体采用酶联免疫吸附试验捕获法检测。结果运城市2006年7～8月乙脑报告发病率为1.87/10万,病死率为16.1%。≥30岁乙脑病例占总病例数的84.9%,年龄别发病率分为<4岁及≥30岁两个高峰,成人及老年人发病率高于小年龄组儿童发病率。结论运城市2006年乙脑疫情特点为成人病例构成比、发病率及病死率均较高。
Objective To understand the epidemiological characteristics of Japanese encephalitis (JE) outbreak in Yuncheng City of Shanxi Province in 2006, and to explore the age characteristics of encephalitis in order to provide basic information for the prevention and control of JE. Methods The data of legal infectious disease reporting system and field epidemiological survey data were analyzed, and the rate of Japanese encephalitis vaccination was evaluated on the spot. The IgM antibody of Japanese encephalitis virus was detected by enzyme - linked immunosorbent assay. Results The incidence of JE reported in July-August 2006 in Yuncheng was 1.87 / lakh and the case fatality rate was 16.1%. ≥30 years old cases of Japanese encephalitis accounted for 84.9% of the total number of cases, the age-related morbidity was divided into two peaks of <4 years and ≥30 years, the incidence of adults and the elderly is higher than the incidence of children in the younger age group. Conclusion The epidemic characteristics of Japanese encephalitis in Yuncheng City in 2006 are the proportions of adult cases, with a high morbidity and mortality.