A Listeria outbreak tied to supplement shakes has sickened more than three-dozen people in 21 states, including Illinois.

Frozen shakes sold to nursing homes and other institutions are being recalled after a listeria outbreak in 21 states that has caused 11 deaths, according to the Federal Food and Drug Administration.

Frozen shakes sold to nursing homes and other institutions are being recalled after a listeria outbreak in 21 states that has caused 11 deaths, according to the Federal Food and Drug Administration.

Frozen shakes sold to nursing homes and other institutions are being recalled after a listeria outbreak in 21 states that has caused 11 deaths, according to the Federal Food and Drug Administration.

Frozen shakes sold to nursing homes and other institutions are being recalled after a listeria outbreak in 21 states that has caused 11 deaths, according to the Federal Food and Drug Administration.

The U.S. Food and Drug Administration (FDA) is working together with the Centers for Disease Control and Prevention (CDC) in collaboration with state and local partners to investigate illnesses in a multi-state outbreak of Listeria monocytogenes infections.

A Listeria monocytogenes outbreak connected to frozen supplemental shakes distributed to foodservice and long-term care facilities has sickened at least 38 people across 21 states.

Here is what you need to know about the deadly listeria outbreak, including which products are being recalled.

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

At least one more death has been reported in connection to a listeria outbreak linked to frozen supplemental shakes.

A deadly listeria outbreak has resulted in a recall of frozen supplemental shakes used at long-term care facilities. The shakes were made by Prairie Farms Dairy Inc. based in Fort Wayne, Indiana, and were sold under the brands of Lyons ReadyCare and Sysco Imperial, the Food and Drug Administration.