Which organism is associated with bacterial foodborne illness?

• A. Salmonella
• B. Staphylococcus aureus
• C. Clostridium botulinum
• D. Bacillus cereus

Answer: (A)

Salmonella is a classic bacterial cause of foodborne illness. It typically yields gastroenteritis after ingestion of contaminated food, presenting with diarrhea, abdominal cramps, fever, and sometimes nausea. Transmission commonly occurs from undercooked poultry and eggs, dairy products, and produce that has been contaminated during processing or handling. The illness results from infection by the bacteria in the intestinal tract, with an incubation period usually around 6 to 72 hours and symptoms that can last several days. Preventing Salmonella involves proper cooking to safe internal temperatures, preventing cross-contamination in the kitchen, and using pasteurized dairy products and juices. Other organisms listed illustrate different pathways to illness: some cause illness through toxins produced in food, others through neurotoxic effects, but Salmonella is the most widely recognized example of a bacterial infection acquired from food and is commonly emphasized in food protection contexts.