Notes from the Field: Rapid Linkage of a Salmonella Livingstone Outbreak to a Restaurant, Using Open-Ended Interviews and Patient Purchase Histories — Utah, 2023–2024

Department of Health and Human Services identified Salmonella Livingstone isolates from five residents living in two neighboring counties through routine enteric disease surveillance (1).Isolates were genetically similar by core-genome multilocus sequence testing (cgMLST).No related isolates from other states were reported to the National Center for Biotechnology Information, and none of the patients reported traveling outside the state during the week before illness, suggesting a local exposure.During initial, routine interviews, patients were asked about potential exposures, including restaurants, but did not report a common exposure.Health officials investigated to identify the source and prevent additional illnesses.This activity was reviewed by CDC, deemed not research,