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为研究学校食物中毒发生的规律，有效地保障学生身心健康，我们分析了1977－1996年间我市学校食物中毒案例资料，并提出了相应的对策。1资料来源水文资料来源于宜昌市辖区内各级卫生防疫站的食物中毒报表，食物中毒专题调查报告和食物中毒案例征集单，2结果与分析21一般情况：1
In order to study the regularity of school food poisoning and effectively protect the students' physical and mental health, we analyzed the case data of school food poisoning in our city from 1977 to 1996 and put forward corresponding countermeasures. 1 Source of Hydrology Source of Food poisoning report, food poisoning investigation report and food poisoning case collection list at all levels of health and epidemic prevention stations in Yichang City area. 2 Results and Analysis 21 General Situation 1