陕西省1960～2004年流行性乙型脑炎流行病学特征分析

Analysis of the Epidemic Characteristics of Japanese B Encephalitis in Shaanxi Province During 1960-2004

目的分析陕西省流行性乙型脑炎（乙脑）的流行病学特征，为制定乙脑预防控制措施提供依据。方法采用Excel软件进行描述流行病学分析。结果陕西省1960～2004年乙脑发病率呈下降趋势；发病季节前移；高发地区为陕西省南部的汉中、安康市；发病者中〈15岁占80．68％，发病者多数在农村。结论提高乙脑疫苗接种率，开展乙脑病例监测，在高发地区及农村进行重点控制，是降低陕西省乙脑发病率的必要措施。

Objective In order to provide information for control and prevention Japanese B Encephalitis （JE） ,we analyzed the epidemic features of JE in Shaanxi Province. Methods To analyze data by the soft of Excel. Results The incidence of JE decreased during 1960 - 2004 ; season of incidence was ahead; the high incidence areas are An＇ kang City and Hanzhong City, the two Cities lie to the south of Shannxi; the patients 〈 15 years old accounts for 80.68 %, and most patients live in rural areas. Conclusion They are necessary methods of decreasing JE incidence.