Here are 10 parasites that can infect humans, and everything you need to know about them so you can avoid contracting one. Parasites are any organism that lives on or inside, or feeds on ...

Pinworms are small, thin, pin-shaped worms that sometimes live in the human colon and rectum. They're also called threadworms. They're about 1/4- to 1/2-inch long — about the size of a staple.

The movie imagines mutated parasites taking over the bodies of humans to wreak havoc on an idyllic town. Breathe easy, though—in reality, Cymothoa exigua, the parasitic isopod in question ...