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.

The Centers for Disease Control and Prevention (CDC) is urging people to check their supplement shakes after a Listeria outbreak.

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.