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

Twelve deaths have been reported as part of an outbreak of Listeria monocytogenes infections linked to frozen supplemental shakes, the US Food and Drug Administration said Monday. At least 38 people in 21 states had been infected,

The Food and Drug Administration recalled nutritional supplemental shakes tied to a deadly outbreak of listeria. The products were sold nationwide and primarily to hospitals and long-term care facilities.