Which organism is most commonly associated with food poisoning following ingestion of reheated rice served at Asian restaurants?

• A. Impetigo
• B. Bacillus cereus
• C. Pelvic inflammatory disease
• D. Toxic shock syndrome

Answer: (B)

Bacillus cereus is the organism most commonly linked to food poisoning from reheated rice because it forms spores that survive cooking and can produce toxins when cooked rice is kept at room temperature. If the rice sits out, the bacteria multiply and release toxins; reheating may kill the bacteria but often does not destroy the preformed toxin. The emetic form of the illness causes vomiting within a few hours, while the diarrheal form causes abdominal cramps and diarrhea later. The other options describe conditions not caused by ingestion of reheated rice, so they aren’t the culprits in this scenario.