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通过对中国 1998～ 2 0 0 2年流行性乙型脑炎 (乙脑 )发病资料进行系统分析 ,根据乙脑平均发病率水平、病例构成等指标将 31个省 (自治区、直辖市 ,下同 )划分为 5个区域。中国近年乙脑发病相对集中于 11个高发省 ,其发病数占全国病例总数的 80 %以上。因此控制高发省乙脑爆发或流行 ,对于降低全国乙脑发病水平具有决定性意义。建议对高发省尽快采取有效措施 ,控制爆发或流行 ,降低乙脑发病 ,并尽早将乙脑疫苗纳入儿童计划免疫
By systematically analyzing the incidence of Japanese encephalitis (JE) from 1998 to 2002 in China, 31 provinces (autonomous regions and municipalities directly under the Central Government) were analyzed according to the average incidence of Japanese encephalitis and the composition of cases. Divided into five regions. In recent years, the incidence of Japanese encephalitis has been relatively concentrated in 11 high-incidence provinces, accounting for more than 80% of the total number of cases nationwide. Therefore, controlling the outbreak or epidemic of JE in high incidence areas is decisive for reducing the incidence of JE in China. It is suggested that effective measures should be taken as soon as possible for the provinces of high incidence to control outbreaks or epidemics and reduce the incidence of Japanese encephalitis and to include the Japanese encephalitis vaccine in the planned immunization of children as soon as possible