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1998年9月4日~21日,我市长台镇某学校发生一起以腹痛、腹泻为主要症状的疾病暴发,共发病56例,经现场流行病学、卫生学调查及实验室检测确定为一起由侵袭型大肠杆菌引起的水源性腹泻病暴发,现将调查结果报告如下。基本情况该校位于长台镇华丰村,全校学生500人,其中小学生229人,中学生271人,小学生以走读为主,而中学生大多自带粮菜住校,不足到食堂购买,学校的生活饮用水取自二口水井(其中任何一口都不能满足全校师生要求),二口井卫生防护结构均不理想,其中一口主要用于饮用的水井在校外水稻田边,为防污染被用水泥浇盖密封,长期未作清洗消毒,学校因各种因素未能向学生提供足量开水,故平时常有学生喝生水的现象,尤以住校生(即初中生)为甚,学校内外未发现可疑饮食摊点。
From September 4 to September 21, 1998, a total of 56 cases of outbreaks of abdominal pain and diarrhea occurred in a school in Changtai Town of our municipality. A total of 56 cases were found to be epidemic, hygiene and laboratory tests Together by invasive Escherichia coli caused by waterborne diarrhea outbreaks, the findings are reported below. Basic conditions The school is located in Huafeng Village, Changtai Town, the school has 500 students, of whom 229 were primary and secondary school students, 271 primary school students to study mainly middle school students bring their own food residence, inadequate to buy canteens, school life Drinking water from two wells (none of which can meet the requirements of teachers and students), two wells are not ideal protective structure, one of which is mainly used for drinking wells in the paddy field outside the school, for the anti-pollution was cement Watering and sealing, long-term did not make cleaning and disinfection, schools due to various factors failed to provide sufficient water to students, so usually students often drink raw water phenomenon, especially live-in students (ie, junior high school students) is even worse, inside and outside the school Found suspicious diet stalls.