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.

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.

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 Listeria outbreak linked to recalled frozen supplemental shakes has resulted in one death in North Carolina and at least 12 deaths nationwide.