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 Centers for Disease Control and Prevention (CDC) is urging people to check their supplement shakes after a Listeria outbreak.

Frozen shakes distributed in long-term facilities around the United States have been recalled due to potential listeria contamination. Lyons Magnus announced Feb. 22 that it had issued a recall for 4 oz. Lyons ReadyCare and Sysco Imperial Frozen Supplemental Shakes, which were manufactured by Prairie Farms Dairy, Inc.

An ongoing listeria outbreak credited with 11 deaths is linked to frozen supplemental shakes. Here’s what you should know: The shakes, sold in 4-ounce cartons under the brands Lyons ReadyCare and Sysco Imperial, were made by Prairie Farms Dairy at its Fort Wayne, Indiana, facility.

Supplemental shakes have been linked to a deadly listeria outbreak. They were distributed in hospitals and long-term care facilities.

As of Monday, the CDC reports 38 people from 21 states have been infected with listeria, including one person in Pennsylvania.

Certain supplement shakes used at long-term care facilities and hospitals in Michigan are under recall amid a deadly listeria outbreak.

A multistate outbreak of Listeria monocytogenes infections has been linked to Lyons ReadyCare and Sysco Imperial Frozen Supplemental Shakes, according to the Fo

A listeria outbreak linked to frozen nutritional milkshakes is to blame for 12 deaths and dozens of hospitalizations, the U.S. Food and Drug Administration confirmed Monday following an investigation that spanned years.

In the outbreak, 38 people were infected across 21 states, including Pennsylvania, the FDA said. Most of them lived in long-term care facilities or were hospitalized prior to getting sick.