Working Cow Homemade Ice Cream, Inc. of St. Petersburg, FL is conducting a voluntary recall of No Sugar Added Vanilla and No Sugar Added Chocolate ice cream manufactured in three-gallon tubs during the month of May 2018. The recall is being conducted due to a potential contamination with Listeria monocytogenes, an organism which can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems. Although healthy individuals may suffer only short-term symptoms such as high fever, severe headache, stiffness, nausea, abdominal pain and diarrhea, Listeria monocytogenes infection can cause miscarriages and stillbirths among pregnant women.