Medically reviewed by Shadi Hamdeh, MD Diarrhea is usually contagious when it is acute, meaning it comes on suddenly. Acute diarrhea is often caused by a microorganism such as a bacteria or virus.

Diarrhea claims the lives of 500,000 children each year in low- and middle-income countries. Now, Danish and Ethiopian researchers have linked chronic diarrhea to a specific pattern of gut ...

The pathogenesis of diarrhea in systemic infections is not well understood because basic data on the mechanisms that lead to diarrhea are lacking. In addition to the cytokine and humoral ...

There is currently insufficient evidence to support their use to prevent diarrhea in children. We evaluated the effect of daily intake of fructooligosaccharide (FOS), a prebiotic agent on diarrhea ...