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流行性乙型脑炎(以下简称乙脑)是山东省最常见的虫媒传染病,1966年的年发病率高达56.07/10万,且病死率、致残率均较高。自1986年以来,我省将乙脑疫苗接种纳入儿童计划免疫,使该病的发病一度得到有效的控制。但近几年乙脑疫情又有所回升,1990年发病数达2562例(发病率为2.98/10万)。为探讨现阶段我省乙脑的流行因素,并制定有效的控制措施,现对1994年我省乙脑病例发病及其流行因素分析如下。
Japanese encephalitis (hereinafter referred to as JE) is the most common zoonotic disease in Shandong Province. The annual incidence in 1966 was as high as 56.07 / 100 000, and the mortality and morbidity were higher. Since 1986, our province has included JE vaccination in children’s immunizations so that the disease’s incidence will be effectively controlled once. However, the epidemic situation of Japanese encephalitis has rebounded in recent years. In 1990, the number of cases reached 2,562 (the incidence was 2.98 / 100,000). In order to explore the current epidemic of JE in our province and to formulate effective control measures, the incidence and prevalence of JE in our province are analyzed as follows.