This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Which of the following is true for staphylococcus aureus food poisoning: September 2008 
Select and explain. 
A. Incubation period of over 20 hours, B. Immediate antibiotic therapy is required, C. Heat labile enterotoxin is responsible, D. Common with dairy products
D: Common with dairy products
Answer: D: Common with dairy products 
Explanation: Ans. D: Common with dairy products Staphylococcus aureus is found in dust, air, and sewage. The bacteria are spread primarily by food handlers using poor sanitary practices. Almost any food can be contaminated, but salad dressings, milk products, cream pastries, and any food kept at room temperature, rather than hot or cold, are likely candidates.