The consumption of contaminated milk and meat, particularly unpasteurized or raw products, is often the source of infection. Animals contaminate vegetables indirectly by the use of manure-based fertilizers. Post-processing contamination may also occur with improper food handling, particularly with soft cheeses and cold cuts at the deli counter. Animals may be silent carriers. The consumption of contaminated milk and meat, particularly unpasteurized or raw products, is often the source of infection.
Animals contaminate vegetables indirectly by the use of manure-based fertilizers.
Post-processing contamination may also occur with improper food handling, particularly with soft cheeses and cold cuts at the deli counter. FDA data from 1993-99 indicates that hot dogs and luncheon meats are two products of particular concern as vehicles for foodborne Listeria monocytogenes . The agency is proposing various rule-making changes to increase safety standards for processed foods, and to increase microbiological testing before the products reach consumers. Also wash cutting boards, dishes, and utensils. Listeria infections are reportable in the State of Idaho.