In February 2025, CDC announced an investigation of a multistate outbreak of Listeria monocytogenes infections associated with Prairie Farms brand supplement shakes. Sick people's samples were collected on dates ranging from August 17, 2018 to January 23, 2025.

As of February 21, 2025, 38 people infected with the outbreak strain had been reported from 21 states. Of 38 people with information available, 37 had been hospitalized. Twelve deaths were reported from California, Illinois, Indiana, Michigan, Minnesota, North Carolina, New York, Tennessee, Texas and Washington. Most of the people in this outbreak lived in long-term care facilities or were hospitalized prior to becoming sick.

FDA traced food records from long-term care facilities. These records showed that supplement shakes made by Prairie Farms were a common food served to people. On February 4, 2025, FDA collected environmental samples at Prairie Farms for testing. On February 19, 2025, WGS showed that the Listeria in the environment are closely related to bacteria from sick people.

On February 22, 2025, Lyons Magnus LLC recalled supplement shakes. CDC is advising people not to eat, sell, or serve recalled products.