The type of hazard most commonly associated with food handling is microbiological. Microbiological hazards are bacteria, viruses, parasites, and prions. The top 3 sources of microbiological hazards in food are raw (unpasteurized) milk, contaminated fruits and vegetables, and raw or undercooked meat and seafood. Use a HACCP plan to efficiently identify and control microbiological hazards and prevent cases of foodborne illness.