LISTERIOSIS

LISTERIOSIS

Listeriosis is caused by Listeria, a type of bacteria that is commonly found in water, soil, and feces. Humans are infected when they consume foods that harbor the bacteria. The most common foods to cause listeriosis outbreaks are deli meats and unpasteurized dairy products.

Infected animals, even if they are not sick, may carry the bacteria,spread it, and contaminate foods. Listeria can be spread to people by several different methods. Eating food contaminated with the bacteria, such as through raw (unpasteurized) milk or contaminated vegetables, is often a source for cases.