A group of patients was seen on an emergency basis complaining of abdominal cramps and watery diarrhea within 5 hours of attending a picnic in which ham, potato salad, and custard-filled pastries were on the menu. Which of the following is the likely cause of this disease?
A. Replication of virus that prevents reabsorption of water
B. Bacterial adherence and invasion
C. Bacterial colonization and toxin production
D. Preformed bacterial toxin
E. Attachment and disruption of intestinal lining due to parasitic infection
Answer: D. Preformed bacterial toxin
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