A 22 year old man had a Beef sandwich and Potato salad. He Vomited 2 hours after the meal. What is the probable diagnosis: (A) S. aureus poisoning, (B) Bacillus cereus poisoning, (C) Clostridial poisonong, (D) Helicobacter pylori poisoning
Answer is A. Preformed toxin of S. aureus causes nausea within 1-6 hours of ingestion.
Common food associated are: Poultry, potato and egg salad.