The facility had multiple issues as was detailed in the FDA 483 report. although the ultimate ingredient source was not identified.
Items of note from the report:
- The was the first time a peanut butter alternative such as soy nut butter has been implicated as the source of an outbreak of STEC infections in the United States
- More than one-quarter of the case patients developed HUS, and all but 1 were children <18 years old.
- CDC identified a subcluster in an Oregon child care center where secondary transmission might have contributed to the spread of the outbreak -this serves as a reminder to child care providers of the importance of appropriate hand-washing and hygiene practices to prevent the spread of infections in these settings and that children with STEC O157 infection should be excluded from attending child care centers until 2 stool cultures (obtained at least 48 hours after antimicrobial therapy, if given, has been discontinued) have negative results for STEC.
- This outbreak serves as a reminder of the important role manufacturers play in preventing foodborne outbreaks and the role brand owners have in overseeing their product safety. Soy nut butter is a ready-to-eat food with a long shelf life, and multiple foodborne outbreaks have been identified over the past few years linked to other ready-to-eat, long-shelf-life foods, such as a powdered meal replacement product, sprouted nut butters, and chia powder.
- Product contamination may have occurred through use of a contaminated ingredient or cross-contamination from contact with contaminated equipment or surfaces during manufacturing. However, because ingredient sample results were negative and multiple objectionable conditions were identified during the facility’s inspection, it was not possible to determine which specific route led to product contamination.
https://pediatrics.aappublications.org/content/early/2019/09/12/peds.2018-3978
A Multistate Outbreak of E Coli O157:H7 Infections Linked to Soy Nut Butter