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

CLEVELAND, Ohio – Supplemental shakes that might have been contaminated with Listeria monocytogenes have been recalled. Lyons Magnus recalled the 4-ounce cartons of Lyons ReadyCare and Sysco Imperial frozen shakes after the products’ manufacturer, Prairie Farms Dairy Inc., recalled them from its Fort Wayne, Indiana, facility.

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.