一起由奇异变形杆菌引起的食物中毒的鉴定与分析

Identification and Analysis of a Food Poison Event Caused by proteus mirabilis

目的查找食物中毒的原因,预防类似食源性疾病的再次发生。方法按食物中毒发生的调查方法,对患者和进食者进行流行病学调查,对现场环境卫生和烹调加工过程进行调查,并采集现场剩余食物、刀具案板及部分患者、食品从业人员的肛拭样本进行致病菌检测。结果在4份剩余食物、5份肛拭、2份刀具案板中检出奇异变形杆菌,其中3份剩余食物中奇异变形杆菌近似数均大于105CFU/g。结论根据流行病学调查及实验室检验分析,本次食物中毒是由奇异变形杆菌污染食物导致。

Objective To investigate food poison factors, and to prevent similar poison events from occurring. Methods In accordance with the investigation method for food poison events, an epidemiological survey has been done among the patients and the infected food eater; the food processing procedure and hygiene environment have been audited on site; and all related samples have been tested for pathogenic bacteria, including remained food samples, kitchen tool swabs and anus swab samples from patients and involved food preparer. Results Proteus mirabilis were found in 4 food samples, 5 anus swab samples and 2 kitchen knives and chopping boards swab samples; among 3 of the food samples, the approximate counts for proteus mirabilis were more than 105 CFU/g. Conclusion According to our epidemiological investigation and lab testing analysis, this food poison event was caused by proteus mirabilis contamination.