The U.S. Food and Drug Administration (FDA) is working together with the Centers for Disease Control and Prevention (CDC) in collaboration with state and local partners to investigate illnesses in a multi-state outbreak of Listeria monocytogenes infections.

A nationwide recall has been issued for frozen nutritional shakes linked to a deadly listeria outbreak, according to the Food and Drug Administration. The shakes were sold to hospitals and long-term care institutions, including nursing homes.

Several cases of a popular nutrition shake have been recalled due to listeria contamination. The FDA and CDC, in collaboration with state and local partners, are investigating illnesses in a multistate outbreak of infections linked to Lyons ReadyCare and Sysco Imperial Frozen Supplemental Shakes manufactured by the Indiana-based Prairie Farms Dairy.

A deadly listeria outbreak linked to frozen supplement shakes has spread across 21 states, leaving 12 dead and 38 hospitalized, prompting an FDA investigation and nationwide recall.

The outbreak is linked to frozen shakes sold under brands like Sysco Imperial and Lyons ReadyCare. The products have been recalled due to Listeria monocytogenes

Twelve people have now died in a multi-state listeria outbreak connected to frozen supplemental shakes. The FDA on Monday announced a recall of 4 oz. shakes manufactured by Prairie Farms Dairy due to a potential contamination of listeria monocytogenes,