Which of the following is a common source of food poisoning bacteria?

• A. Pests
• B. Water
• C. Dust
• D. Soil

Answer: (A)

Pests are a common source of food poisoning bacteria because pests such as flies, cockroaches, and rodents continuously move between waste areas, drains, and food preparation spaces. They pick up bacteria from contaminated surfaces or waste and transfer them directly to food, utensils, and packaging as they crawl or fly around. Their bodies, droppings, and nesting materials can harbor pathogens like Salmonella or Campylobacter, making them active vectors of contamination. Eliminating pests and sealing entry points reduces cross-contamination and lowers the risk of causing foodborne illness. While water, dust, and soil can carry bacteria, they’re typically less direct sources of contamination in everyday food handling compared with pests that physically contact food and surfaces.