The illness caused by Listeria monocytogenes is called listeriosis. Sources Listeria monocytogenes bacteria are commonly found in the intestines of humans and animals, in milk, soil, leafy vegetables and in food processing environments. The bacteria have been isolated in a variety of foods including raw and cooked poultry, meat, seafood, salads and sandwiches. These bacteria can grow slowly at refrigerated temperatures. In adults, symptoms include the sudden onset of fever, chills, headache, backache and occasional abdominal pain and diarrhea.
Newborns can contract listeriosis from an infected mother during birth.
Newborn symptoms include respiratory distress, refusal to drink and vomiting. Listeriosis can also cause spontaneous abortions and stillbirths. Symptoms may begin from one day to several weeks following infection. Control Measures Because Listeria monocytogenes appear to be a common environmental contaminant, the critical issues are controlling their growth and preventing their survival. Avoid unpasteurized milk and dairy products.