Those at risk should avoid eating the following: Soft cheeses made with unpasteurized milk (eg, feta, Brie, Camembert, queso fresco, queso blanco); raw (unpasteurized) milk and milk products, although Listeria contamination can occur after pasteurization Refrigerated ready-to-eat foods (eg, hot dogs, deli meats, pȃtés, meat spreads), unless they are heated to an internal temperature of 73.9° C (165° F) or until steaming hot just before serving Refrigerated smoked seafood (eg, nova-style, lox, kippered, smoked, jerky), unless it has been cooked Key Points L monocytogenes is very common in the environment but causes infection in only about 1600 people annually in the US, typically via contaminated food products.