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咸丰县活龙职中,活龙初中,活龙小学(以下简称三校)于1990年9月发生菌痢暴发流行,发病人数166名,发病率12.91％,未发生死亡病例。现将调查结果报告如下: 1 卫生学调查三校校舍相邻,交错连成一片,师生可自由
In Xianfeng County, there were 166 cases of dysentery outbreak in Huolang County, Huolong Junior High School and Huolong Primary School (hereinafter referred to as “Three Schools”) in September 1990. The incidence rate was 12.91%. No deaths occurred. Now the survey results are reported as follows: 1 hygiene survey three school adjacent to school, staggered into one, teachers and students are free