El Ranchero Del Sur, LLC. of South River, New Jersey is recalling El Ranchero Queso Fresco 14 oz. (Fresh Cheese), Los Corrales Queso Fresco en Hoja De Platano 14 oz. (Fresh Cheese In Banana Leaf), El Ranchero Queso Oaxaca 14 oz. and 10 lb. (String Cheese) because they have 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.