Frozen nutritional shakes given to hospital patients and long-term care residents have been recalled after they were linked to 11 deaths and dozens of serious illnesses — with the outbreak dating

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.

Frozen shakes distributed in long-term facilities around the United States have been recalled due to potential listeria contamination. Lyons Magnus announced Feb. 22 that it had issued a recall for 4 oz. Lyons ReadyCare and Sysco Imperial Frozen Supplemental Shakes, which were manufactured by Prairie Farms Dairy, Inc.