<prompt> A person after 6 hr. of consuming rice pudding in restaurant develops vomiting. True statements regarding food poisoning-Caused by staphylococcus aureusPreformed toxinCaused by vibrio parahaemolyticusHeat labile toxin  <response>: Ans. is b i.e., Preformed toxin . Vomiting within 6 hours of ingestion of rice suggests the diagnosis of emetic type of food poisoning caused by B. cereus. . It caused by preformed heat stable enterotoxin. . In emetic form, B. cereus is not found in large numbers in fecal specimens. Therefore food sample is more useful. 