FSIS Posts After-Action Review for Pork Patty-Linked Lm Outbreak

  • The US Division of Agriculture’s (USDA) Meals Security and Inspection Service (FSIS) routinely screens clusters of sicknesses to find out if FSIS-regulated merchandise will be the supply of food-borne sicknesses.  FSIS posts info on lively outbreak investigations to a table on its web site when there may be compelling proof that an FSIS-regulated product is the supply.  The first pathogens concerned in FSIS outbreak investigations are Salmonella, Shiga toxin–producing Escherichia coli (STEC), Listeria monocytogenes (Lm), and Campylobacter.

  • In a November 19, 2021 Constituent Update, FSIS introduced that it has posted on its web site an after-action review report for the investigation of a 2018 multi-state outbreak of Lm sicknesses related to ready-to-eat (RTE), Asian-style pork patty merchandise that resulted in 4 hospitalizations.  Entire genome sequencing (WGS) evaluation of bacterial isolates from routine FSIS product and environmental samples indicated the historic presence of the outbreak pressure at a single FSIS-regulated institution.  The Investigation additional revealed that the pork patty merchandise had been cooked utilizing a course of that was not validated to make sure all items had been completely cooked, and there was a historical past of Lm harborage and alternatives for contamination after cooking that weren’t thought-about by the institution.

  • The Lm outbreak linked to pork patties was solely the second reported multistate outbreak of listeriosis linked to a FSIS-regulated product since 2005.  Nonetheless, as famous within the investigation report, FSIS could take into account an replace of Directive 10240.4 (Verification Actions for the Lm Regulation and the RTE Sampling Program) to incorporate extra directions for inspection personnel when verifying if a product is uncovered to the atmosphere after present process a cooking step.

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