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1960年8月27日下午5点,莱阳某工厂的6名炊事员突然全部发生急性胃肠炎,继而在厂内食堂就餐的工人中亦出现了大批同样病例。28日下午12点半,同地区另外两个工厂的炊事员中,也有9名患急性胃肠炎。同日下午3点半开始,又一个工厂三个食堂的11名炊事员也患急性胃肠炎,此后,该厂职工陆续发病者200余名,疫情于9月7日终息。四个厂的8个食堂中,6个食堂的炊事员、4个食堂的就餐者中,于短时期内有大量急性胃肠炎病例发生。这四个厂都在8月27日、28日购食了莱阳县食品门市部的二批死、病猪肉。同一时期,上述四个厂的邻近工厂和居民中无同样疾病发生。事件发生后,我们对上述有关单位进行了流行病学调查、病例调查、并采取其中一个厂的食堂28日晚餐所食之肉饼的肉馅,作细菌学检查。兹将调查结果报导如下。
On August 27, 1960, at 5 p.m., six cooks at a factory in Laiyang suddenly became acute gastroenteritis. A large number of the same cases also appeared in the canteen diners in the factory. At 12:30 on the 28th, with the other two factories in the same district cook, there are 9 patients suffering from acute gastroenteritis. On the same day, at 3:30 pm, another 11 cooks in three canteens of a factory also suffered from acute gastroenteritis. Since then, more than 200 workers and patients of the plant have been reported to have died, and the outbreak was terminated on September 7. Among the eight canteens in the four factories, there are a large number of cases of acute gastroenteritis in a short period of time among the cooks in six canteens and diners in four canteens. The four plants all bought the second batch of dead and diseased pork in Laiyang County Food Market on August 27 and 28. During the same period, no similar diseases occurred in the factories and residents in the four factories. After the incident, we carried out epidemiological investigation and case investigation on the above-mentioned units and took the bacteriological examination of the meat patties of the patties eaten at our factory canteen on the 28th. The survey results are reported below.