1966-2005年郴州市流行性乙型脑炎流行特征分析

Epidemiological Characteristics of Japanese Encephalitis During Past 40 Years in Chenzhou City

目的了解湖南省郴州市乙脑的变化趋势及其流行病学特征。方法对郴州市1966-2005年间的乙脑疫情报告资料整理建立数据库,用SPSS10.0统计软件包进行χ2等统计学检验。结果郴州市1966-2005年乙脑的报告发病率逐年下降,年平均报告发病率为5.87/10万;学龄前儿童占总病例数的76.65%;乙脑发病具有明显季节性,6、7、8月是发病的高峰期,占全年病例数的93.31%;发病率高的县主要集中于山区和丘陵区。结论乙脑疫苗的免疫接种对预防和控制乙脑的发生起重要作用,且已取得显著成效,但仍需加强对学龄前儿童的乙脑疫苗免疫接种。

Objective To study the variation trend of incidence and epidemic characteristics of Japanese encephalitis during 1966- 2005. Method The data of epidemic situation of Japanese encephalitis during 1966-2005 in Chenzhou was analyzed by using SPSS 10. 0. Results The annual reported incidence decreased year by year and the annual average incidence was 5.87/10^5 during 1966 - 2005 in Chenzhou. Children aged 1 - 5 years old were major subjects attacked by Japanese encephalitis, accounting for 76. 65%. There was obvious seasonal variation and 93.31% cases occurred during July-August. Conclusion The inoculation of Japanese encephalitis vaccine is an effective prophylaxis. The programmed immunization in children aged 1-5 years old should be strengthened.