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 outbreak has infected 38 individuals, 37 of whom have been hospitalized, and 12 who have died A listeria outbreak linked to recalled frozen shakes has left 12 people dead, according to the U.S. Food and Drug Administration (FDA).

Frozen supplemental shakes sold to hospitals and long-term care facilities in 21 states are making people sick and have already led to 12 deaths.