Listeria monocytogenes is a bacterium that can cause serious infection, especially in pregnant women, newborns, older adults, and people with weakened immune systems. A Listeria outbreak has been linked to frozen supplemental shakes, leading to a nationwide recall of the product. The outbreak has primarily affected individuals in long-term care facilities and hospitals. - The FDA has confirmed that a Listeria outbreak linked to frozen supplemental shakes has resulted in 12 deaths and 38 illnesses across 21 states. - The recalled shakes, sold under the brands Lyons ReadyCare and Sysco Imperial, were distributed to hospitals, nursing homes, and other institutions. - The CDC reported that many of the cases date back to 2018, with a majority occurring in late 2024 and early 2025. - Listeria is the third-leading cause of death from foodborne illness in the U.S.