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

The supplement shakes were sold to hospitals and long-term care facilities, including nursing homes. There is a nationwide recall for the ReadyCare and Sysco Imperial Frozen Supplemental Shakes. Twelve deaths associated with the listeria outbreak have been linked to the shakes.

Listeria-tainted frozen shakes served at hospitals and long-term care facilities have sickened at least 38 people and resulted in the deaths of 12, the Food and Drug Administration said. The FDA’s investigation is ongoing.