Because they live in the gut, you can sometimes tell you have intestinal worms by looking at your stool. These parasitic worms are called helminths. Seeing worms or eggs in your poop isn’t the ...

In most cases, the rash from a wandering worm is in a foot, ankle, thigh, or rear—basically from a person walking or sitting ...

Viruses, bacteria, or parasites cause contagious diarrhea. These germs spread via fecal-oral transmission. They are shed in the stool of one person and somehow enter the mouth of the next.

The number of detected cases began to rise rapidly along with the AIDS epidemic and the development of methods to identify the parasite in stool samples. The earliest cases of human cryptosporidiosis ...