Table 2.

Clinical Presentations and Likely Causes of Acute Diarrheal Disease in Outpatients^legend

Clinical Type	Approximate Percentage of Patients	Likely Cause
		Industrialized Countries	Less-developed Countries
Watery diarrhea	90	Rotavirus, other viruses	Rotavirus, Enterotoxigenic Escherichia coli, Enteropathogenic E. coli, Campylobacter jejuni
Dysentery	5 to 10	Shigella, Enteroinvasive E. coli, Campylobacter jejuni	Shigella, Enteroinvasive E. coli, Campylobacter jejuni, Entamoeba histolytica
Protracted diarrhea (>14 days)	3 to 4	Enteropathogenic E. coli, Giardia, Yersinia	Enteropathogenic E. coli, Giardia
Severe purging with rice-water stool	1 (higher in cholera-endemic areas)	Salmonella, Enterotoxigenic E. coli	Vibrio cholerae, Enterotoxigenic E. coli
Hemorrhagic colitis	<1?	Enterohemorrhagic E. coli	Enterohemorrhagic E. coli

^legendModified from (6).