一起副溶血性弧菌所致食源性疾病暴发的流行病学调查

吴丽珠; 高红梅; 杨洋; 马英

doi:10.19428/j.cnki.sjpm.2022.21590

一起副溶血性弧菌所致食源性疾病暴发的流行病学调查

Epidemiological investigation of a foodborne disease outbreak caused by Vibro parahaemolyticus

摘要

摘要:
目的对一起食源性疾病暴发事件进行调查和溯源，为预防类似事件发生提供依据。
方法采用流行病学、现场卫生学和实验室检测等方法调查A公司一起食源性疾病的病因。
结果 24例确诊病例临床症状以腹痛（100.0%）、腹泻（100.0%）和呕吐（41.7%）为主；24例患者肛拭样品中检出副溶血性弧菌（Vibrio parahaemolyticus），脉冲电场凝胶电泳（PFGE）技术溯源分析提示为同源暴露；病例对照研究显示，可疑食物为2019年7月16日晚餐和夜宵的炝拌粉丝（OR=15.71，95%CI：1.90~129.71）。
结论本次聚集性事件判定为一起炝拌粉丝被交叉污染副溶血性弧菌而引发的食源性疾病暴发事件。

Abstract:
Objective To investigate a foodborne disease outbreak and identify the pathogenic factors in order to prevent the occurrence of similar incidents.
Methods Epidemiological study， on-site food hygiene investigation， and laboratory testing were used to analyze the cause of outbreak in Company A.
Results A total of 24 confirmed cases were screened out. The major clinical symptoms were diarrhea （100.0%）， stomachache （100.0%）， and vomiting （41.7%）. Samples from 24 patients were tested positive for Vibrio parahaemolyticus， and were homologous by Pulsed field gel electrophoresis （PFGE） phylogenetic study. According to the result of case-control study， eating glass noodles salad at the dinner and supper on July 16th， 2019 was the risk factor （OR=15.71，95%CI：1.90‒129.71）.
Conclusion This foodborne disease outbreak was caused by glass noodles salad cross contaminated with Vibrio parahaemolyticus.

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