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1986～1990年，我地区部分中小学师生中陆续发生了几起伤寒暴发流行，现将流调结果报道如下：1流行特征1．1发病情况：1986年5月始．我地区前后有5所乡镇级中小学（中学2所，小学3所）发生伤寒暴发流行，共发生伤寒458例，患病率为40．03％。其中以古丈县岩头寨乡中心完小患病
From 1986 to 1990, several typhoid outbreaks were reported among some primary and secondary school teachers and students in our region. The results of the epidemic adjustment are reported as follows: 1. Prevalence 1.1 Incidence: Beginning in May 1986. There were 5 typhus outbreaks in 5 township primary and secondary schools (2 secondary schools and 3 primary schools) before and after my area. There were 458 cases of typhoid fever with the prevalence of 40.03%. Among them, Guzhang County, Yantou Zhai Township Center finished small sick