Idaho state officials are investigating an outbreak of Campylobacter infections linked to raw, unpasteurized milk.
The Idaho Department of Health and Human Services reports 60 cases have been confirmed, at least 45 of which tested positive for campylobacteriosis. All 60 patients consumed raw milk before becoming ill.
The Department of Health has identified two dairy farms as sources of the unpasteurized milk, but has not yet named them. One of them is in northern Idaho and the other is in southern Idaho.
The first patient was confirmed on May 19. Investigations and interviews of those reported sick are ongoing and additional illnesses may be identified.
An investigation is underway to identify potential batches of concern and test milk samples. Both milking operations are working with the state Department of Health and local public health agencies to identify and address potential sources of contamination.
“Raw, unpasteurized dairy products can contain bacteria that can make people sick, especially children, pregnant women, the elderly, and those with weakened immune systems. Pasteurization kills nearly all bacteria that may be present in raw milk while maintaining its nutritional benefits,” according to the state health department.
The Idaho Department of Public Health is collaborating with the Panhandle Regional Health Department, Southwest Regional Health Department, Central Region Health Department, Southeastern Idaho Department of Public Health, South Central Department of Public Health and Eastern Idaho Department of Public Health on this investigation.
Raw milk is a known source of bacteria, including Listeria, Salmonella, E. coli, and Campylobacter. All of these pathogens are destroyed through pasteurization, which involves heating the milk to 161 degrees Fahrenheit for 15 seconds.
A study conducted at the University of Delaware found that compared to consumers of pasteurized dairy products, people who drink raw milk are 840 times more likely to get sick and 45 times more likely to be hospitalized.
