Idaho health officials are investigating an outbreak of illnesses linked to raw milk that has sickened nearly 60 people across the state. The Idaho Department of Health and Welfare announced that most of the reported illnesses are connected to raw milk consumed from two separate milking operations located in North Idaho and southern Idaho. The first illnesses were reported beginning May 19.
State officials have not publicly identified the dairies involved but say they are working closely with the operations to determine the source of contamination.
“We did not name the milking operations because this is a potential risk for any raw milk producer,” says Department of Health and Welfare spokesperson AJ McWhorter in a statement.
According to McWhorter, both operations are cooperating with public health officials to determine which milk batches may be involved and implement corrective actions.
Campylobacter Identified in Many Cases
Of the nearly 60 people who became ill, 45 have tested positive for campylobacteriosis, a bacterial infection caused by Campylobacter bacteria. Health officials note that not all affected individuals have been tested, and additional cases may still be identified.
The Idaho Department of Health and Welfare’s Division of Public Health is coordinating the investigation with local health agencies across six of the state’s seven public health districts.
Understanding the Risks of Raw Milk
Unlike pasteurized milk, raw milk has not undergone heat treatment designed to destroy harmful pathogens. While many consumers seek out raw milk because of perceived health benefits, public health agencies have long warned that it can contain disease-causing bacteria.
Potential pathogens found in raw milk include Campylobacter, E. coli, Listeria and Salmonella.
These bacteria can cause symptoms such as diarrhea, vomiting, abdominal pain, fever and dehydration. In some cases, infections can lead to severe complications, particularly among young children, older adults, pregnant women and individuals with weakened immune systems.
Health Officials Urge Caution
While the current investigation remains ongoing, the outbreak serves as a reminder of the food safety risks associated with consuming unpasteurized dairy products.
State officials say they will continue working with producers and local health departments as they identify the source of contamination and determine whether additional milk products may be affected.
