These germs spread via fecal-oral transmission. They are shed in the stool of one person and somehow enter the mouth of the next. Viruses are the most common cause of diarrhea that's passed ...

The United States Food and Drug Administration issued a formal warning against Human Microbes, a California company that describes itself as "the world's largest, highest quality stool donor bank." ...

Stools of breast-fed babies usually have little odor, while formula fed babies may have a green or tan colored stool and a stronger smell. Most newborns move their bowels several times a day.