Idaho’s Department of Health and Welfare announced Wednesday that it is investigating two separate outbreaks tied to the consumption of unpasteurized raw milk, with close to 60 people having fallen ill since mid-May.
What Officials Know So Far
Health officials confirmed that illnesses began surfacing on or around May 19. The affected individuals consumed raw milk sourced from milking operations in both northern and southern Idaho. Of those who became sick, at least 45 have tested positive for campylobacteriosis, a bacterial infection that typically produces symptoms within two to five days of exposure. Most cases resolve within about a week.
Investigation Underway Across the State
State health investigators are working to pinpoint which specific batches of raw milk may have been contaminated. That process includes laboratory testing of milk samples from the operations in question. The dual nature of the outbreak — spanning both ends of the state — suggests the contamination is not isolated to a single geographic source.
What Comes Next
Canyon County and Treasure Valley residents who purchase raw milk from local operations or farmers markets should be aware of the active investigation. Campylobacteriosis can cause diarrhea, cramping, fever, and nausea, and while most healthy adults recover without medical treatment, the illness can be more serious for young children, the elderly, and those with weakened immune systems.
State health officials have not yet released the names of the specific operations linked to the outbreaks. Anyone who has consumed raw milk recently and is experiencing symptoms consistent with a gastrointestinal infection is encouraged to contact a healthcare provider. For broader Idaho health and policy coverage, visit Idaho News.