USMLE Step 1 Quiz
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GASTROINTESTINAL SYSTEM
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A 28-year-old medical student eats at a local picnic and develops vomiting and watery diarrhea 4 hours later. Several other people who ate the potato salad also become ill. The symptoms resolve within 24 hours without treatment.
The pathophysiology of this patient's acute gastrointestinal illness is best explained by which of the following?
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