Del Bueno of Grandview, WA is recalling all 16oz. size packages of Queso Fresco Casero Fresh Cheese with a date stamp of Sept 14, 2011 because it has the potential to be contaminated 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 infection can cause miscarriages and stillbirths among pregnant women.