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目的分析2008-2010年济源市流行性乙型脑炎(乙脑)的流行病学特征,为预防控制乙脑提供依据。方法采用描述流行病学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。结果 2008-2010年济源市乙脑报告发病率为1.23/10万,病死率为20.0%。≥45岁乙脑病例占总病例数的88.0%,成人及老年人发病率高于小年龄组儿童发病率,山区镇发病率高于平原镇(街道)。结论 2008-2010年济源市乙脑疫情特点为成人病例构成比、发病率及病死率均较高,与以前乙脑发病以15岁以下,特别是10岁以下为主不同,应引起足够的重视。
Objective To analyze the epidemiological characteristics of Japanese encephalitis (JE) in Jiyuan City from 2008 to 2010, and provide evidence for the prevention and control of JE. Methods The descriptive epidemiological method was used to analyze the statutory communicable disease reporting system data and field epidemiological survey data. Results The incidence of JE reported in Jiyuan from 2008 to 2010 was 1.23 per 100 000 and the case fatality rate was 20.0%. The incidence of ≥45-year-old Japanese encephalitis accounts for 88.0% of the total number of cases. The incidence of adults and the elderly is higher than that of children in the younger age group. The incidence in mountainous areas is higher than that in plain towns (streets). Conclusion The epidemic situation of JE in Jiyuan City from 2008 to 2010 is characterized by the ratio of adult cases and the morbidity and mortality of JE are relatively high, which should be paid more attention than the previous incidence of JE by under 15, especially under 10 years old .