一起鼠伤寒沙门氏菌食物中毒的调查报告

1987年8月下旬福建省永安市突然发生大批发热、腹泻、腹痛病人,5天内住院1 113人。经调查,患者均主诉有食冷饮史,从患者粪便检出鼠伤寒沙门氏菌,血中检出相应抗体,并在冰淇淋、冰砖、鸡蛋和生产冷饮工具中检出同种菌,证明是因鼠伤寒菌污染冷饮品而造成的一起食物中毒。四个月后对患者、健康人、禽类、蛋品及污水进行复查,结果仍从5%污水中检出鼠伤寒菌。表明当地仍存在隐患。

Large Food Poisoning of Salmonella Typhi-murium Caused by Ice Drinks

A large number of patients with fever, diarrhea and abdominal pain outbroke in Yong-an, Fujian in late Aug. 1987. 1113 patients fell ill in 5 days. S.typhi-murium were isolated from patients feces. Related HA-antibodies were detected in sera.All patients complainted that they had eatenice drink. Through investigating one of ice-bar, S. typhi-mutium were detected from ice-cream and frozen cream, eggs and containers. A lot of contaminated bacteria were detected in icecream containing 2.2 10⁵-1.5 10⁸ and 2.9 10⁵ in ice-brick per piece respectively.It was demonstrated that food poisoning outbreak was due to S.typhi-murium.
Mean of patient''s incubation period were 24.15 hrs., 78% diarrhea were less than 10 episodes. The incubation period, symptom were possessed of closed relation with the number of bacteria which patients taken in. After 4 months, a part of patients, poultry, eggs and polluted water were investigated, it was showed that S.typhi-murium were detected from 5% polluted water. Due to the potential danger has been existing. We should pay attention to surveillance and to prevent epidemic outbreak again.