一起食用东北面豆引起的食物中毒事件

A Case of Food Poisoning Caused by Northeast Haricot

目的查明某医院接诊28名以恶心、呕吐、腹痛、头晕和头痛为主要症状患者发生食物中毒的发病原因,及时采取防控措施,预防类似食物中毒事件的发生。方法使用广东省CDC统一制定的《个案现场调查表》对进餐人员开展回顾性队列研究。采集有关的样品开展致病菌、有机磷农药定性和毒素检测等实验室检验。结果某厂集体食堂和该食堂2009年2月20日的午餐分别是引起该起食物中毒的进餐场所和餐次;炒东北面豆是所有患者唯一共同进食食物,进食此食物的罹患率最高(42.4%),与进食其他食物的罹患率(10.5%～19.0%)差异有统计学意义(P<0.05);炒东北面豆皂甙检验阳性。结论确认此次食物中毒由进食东北面豆引起,卫生主管部门应加强集体食堂从业人员预防食物中毒知识的宣传教育。

[Objective]To find out the cause of food poisoning of 28 patients who had symptoms of nausea,vomitting,stomachache,dizziness and headache,carry out the measures of control and prevention timely,and prevent similar event.[Methods]The retrospective cohort study was carried out with the Field Survey Form for Individual Case designed by Guangdong Provincial CDC.The laboratory examinations which included pathogen,organophosphorus pesticide and toxin were performed in the related samples.[Results]This food poisoning event was caused by the lunch in February 20,2009,and the dining place was collective eatery in a factory.The unique common food of patients was the frying northeast haricot,the attack rate of eating this food was the highest （42.4%）,that of eating other foods was 10.5% ～19.0%,and there was significant difference （P〈0.05）.The frying northeast haricot was positive in saponin detection.[Conclusion]This food poisoning event was confirmed to be caused by eating northeast haricot.The health department should strengthen the education of knowledge about preventing food poisoning among the employed in collective eatery.