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,

Nutritional milkshakes served in long-term care facilities were recalled Saturday after being linked to 12 deaths and dozens of hospitalizations, according to the CDC.