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Gastroenteritis is a general term referring to inflammation or infection of the gastrointestinal tract, primarily the stomach and intestines.[1] It can be caused by infection with bacteria, viruses, or other parasites, or less commonly reactions to new foods or medications. It often involves stomach pain (sometimes to the point of crippling), diarrhea and/or vomiting, with noninflammatory infection of the upper small bowel, or inflammatory infections of the colon.[2][3][4][5]