To be clear, by the term “universal” I am in no way referring to a theme park.  A recent review in the NEJM (N Engl J Med 2014; 370:1532-1540) discusses acute diarrhea, http://nej.md/1l2bAIn .

“In the United States, there are approximately 179 million cases of acute diarrhea per year. This update on the diagnosis and management of acute diarrhea in immunocompetent adults gives particular attention to the roles of noroviruses and Clostridium difficile.”

This post is mainly to provide an up-to-date useful reference.