Similarities are: only that the 2 conditions occur in the gi tract and they are both inflammatory conditions. That is where similarity ends. Gastroenteritis is usually an infection that mainly affects the mucosa or inner lining. Diverticulitis is an infection that happens in an outpouching of the intestine, usually colon. Stomach flu is a form of viral gastroenteritis.
Answered 1/13/2018
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