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1987年7月17日,某部招待所因食用螺旋面包引起食物中毒,共发病17例。经流行病学调查和细菌学检验,证实为一次由金黃色葡萄球菌引起的暴发性食物中毒。 (一) 流行病学调查 中毒发生后,调查了该招待所24h内食谱。16日全天就餐132人,无一人发病。17日早就餐者51人,发病17人;未进早餐者无一患病。证明此次中毒与17日早餐有密切关系。据炊事人员反映,17日早餐的卤猪肚、鱼干、笋干、牛奶等副食均经彻底加热处理,故引起中毒的可能性较小。主食为螺旋面包,是16日晚23时从地方某食品厂购入。17例病人都食用这种面包,而未食用者无发病。17日9时出现首发病例,9～10时
July 17, 1987, a guest house due to eating spiral bread caused food poisoning, a total of 17 cases of disease. Epidemiological investigation and bacteriological tests, confirmed as a result of Staphylococcus aureus outbreak of food poisoning. (A) Epidemiological Investigation Poisoning occurred after investigating the guest house recipes within 24 hours. 132 people dining on the 16th, no one disease. Early on the 17th meal 51 people, the incidence of 17 people; did not enter the breakfast without a disease. Prove that the poisoning and breakfast on the 17th are closely related. According to the staff of the cooking team, on the 17th, the brine pork belly, dried fish, dried bamboos, milk and other non-staple foods of the breakfast were all thoroughly heat treated, which made the possibility of poisoning less likely. Staple food for the spiral bread, is at 23 o’clock on the 16th from a local food factory purchased. All 17 patients consumed the same bread, but none of the patients had no disease. At 17:00 on the 17th the first case occurred, 9 to 10 o’clock