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Cake day: June 28th, 2023

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  • I don’t really understand how “outbreak strains” are identified or tracked, but this if what the linked FDA paper in the article says:

    FSIS and public health partners are investigating an outbreak of Lm that currently includes 17 ill people in 13 states. As of June 17, 2025, there have been three reported deaths and one fetal loss associated with this outbreak. The outbreak strain of Lm was isolated from ill people on dates ranging from August 2024 – May 2025. The same outbreak strain was isolated from a routine chicken fettuccine alfredo sample collected by FSIS in a FreshRealm establishment in March 2025. The lot of chicken fettuccine alfredo represented by this sample was held during sampling, destroyed, and never entered commerce. The subsequent investigations at the establishment that produced this product, and into the product ingredients, have not identified the source of contamination. FSIS also used purchase records from two ill people to trace purchased chicken fettuccine alfredo products to FreshRealm establishments. An additional two ill people verbally described chicken fettuccine alfredo products they purchased. FSIS identified products produced by FreshRealm that matched the descriptions during follow-up at the retail stores where they shopped. This investigation is ongoing. FSIS is sharing what is currently known regarding products associated with the outbreak as the agency continues to work with public health partners to identify whether a specific ingredient in the chicken fettucine alfredo may be the source of this strain of Lm.