Editing Gastroenteritis (section)

==Pathophysiology==

Gastroenteritis is defined as [[vomiting]] or [[diarrhea]] due to inflammation of the [[small bowel|small]] or [[large bowel]], often due to infection.<ref name=M93/> The changes in the small bowel are typically noninflammatory, while the ones in the large bowel are inflammatory.<ref name=M93/> The number of pathogens required to cause an infection varies from as few as one (for ''Cryptosporidium'') to as many as 10<sup>8</sup> (for ''Vibrio cholerae'').<ref name=M93/>