MMWR Morb Mortal Wkly Rep. 1999 Apr 16;48(14):285-9.
In August 1998, the Minnesota Department of Health reported to CDC two restaurant-associated outbreaks of Shigella sonnei infections. Isolates from both outbreaks had two closely related pulsed-field gel electrophoresis (PFGE) patterns that differed only by a single band. Epidemiologic investigations implicated chopped, uncooked, curly parsley as the common vehicle for these outbreaks. Through inquiries to health departments and public health laboratories, six similar outbreaks were identified during July-August (in California [two], Massachusetts, and Florida in the United States and in Ontario and Alberta in Canada). Isolates from five of these outbreaks had the same PFGE pattern identified in the two outbreaks in Minnesota. This report describes the epidemiologic, traceback, environmental, and laboratory investigations, which implicated parsley imported from a farm in Mexico as the source of these outbreaks.
1998年8月，明尼苏达州卫生部向美国疾病控制与预防中心（CDC）报告了两起与餐厅相关的宋内志贺菌感染暴发事件。这两起暴发事件的分离株具有两种密切相关的脉冲场凝胶电泳（PFGE）图谱，仅相差一条带。流行病学调查表明，切碎的、未煮熟的皱叶欧芹是这些暴发事件的共同传播媒介。通过向卫生部门和公共卫生实验室询问，在7月至8月期间又发现了6起类似的暴发事件（分别发生在美国的加利福尼亚州[两起]、马萨诸塞州和佛罗里达州，以及加拿大的安大略省和艾伯塔省）。其中5起暴发事件的分离株具有在明尼苏达州的两起暴发事件中所确定的相同PFGE图谱。本报告描述了流行病学、溯源、环境和实验室调查情况，这些调查表明从墨西哥一个农场进口的欧芹是这些暴发事件的源头。
