Frozen supplemental shakes sold to hospitals and long-term care facilities in 21 states, including Florida, are making people sick and already have led to 12 deaths.

An outbreak tied to listeria infections has been reported in 21 states, including Alabama, with 37 hospitalizations and 11 deaths nationwide.

Frozen shakes sold to nursing homes and other institutions are being recalled after a listeria outbreak in 21 states that has caused 11 deaths, according to the Federal Food and Drug Administration.