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 ...

“If you don't have a reference material where you know what's in it, you don't know what you're missing,” said Martha Carlin, founder of The BioCollective, a company working to improve stool sample ...

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.