What protozoa cause diarrhea?

It has long been recognized that most cases of traveler's diarrhea are acute in nature and tend to resolve within 5–10 days after the onset of symptoms. Common organisms that cause acute traveler's diarrhea are enterotoxigenic Escherichia coli, Campylobacter jejuni, Shigella species and Salmonella species. read more

This information refers to the general prevalence and incidence of these diseases, not to how likely they are to be the actual cause of Protozoal causes of diarrhea. read more

Numerous studies have identified intestinal protozoa in only 0%–12% of cases of acute travelers diarrhea (summarized in Peltola and Gorbach ). In contrast, intestinal protozoa are the most common infecting organisms identified in travelers with chronic diarrhea. read more