Listeria

Listeria refers to a genus of bacteria, specifically Listeria monocytogenes, which is known for causing the infection listeriosis. These bacteria are gram-positive, rod-shaped, and can thrive in various environments, including in food products. Listeria is particularly notable for its ability to grow at refrigeration temperatures, making it a significant concern in food safety. It is often associated with ready-to-eat deli meats, unpasteurized dairy products, and certain other foods. In healthy individuals, Listeria may cause mild flu-like symptoms; however, it poses a greater risk to pregnant women, newborns, the elderly, and individuals with weakened immune systems, potentially leading to severe complications, including meningitis or miscarriage. The term "Listeria" is thus central to discussions about foodborne illnesses, public health, and food safety regulations.