Recalled supplemental shakes were distributed to hospitals and long-term care facilities nationwide, federal officials say.

A deadly listeria outbreak has resulted in a recall of frozen supplemental shakes used at long-term care facilities. The shakes were made by Prairie Farms Dairy Inc. based in Fort Wayne, Indiana, and were sold under the brands of Lyons ReadyCare and Sysco Imperial, the Food and Drug Administration.

The frozen supplemental drinks have been linked to an outbreak of listeria that has killed at least 11 people and hospitalized 37.