From October 2023 through February 2024, the California Department of Public Health (CDPH), in collaboration with California local health jurisdictions (LHJs), the California Department of Food and Agriculture (CDFA), and state and federal public health partners, has been investigating a multijurisdictional outbreak of Salmonella Typhimurium. Epidemiologic, laboratory, and traceback investigations have identified Raw Farm brand raw (unpasteurized) milk as the source of the outbreak. As of February 2024, 165 outbreak-associated cases have been reported. The investigation is ongoing.
