Parasites are dangerous creatures that survive off their hosts. Here are 12 common parasites that feed on the human body.

Three types of parasites can cause disease in humans. They are protozoa, carried by mosquitos, helminths, such as roundworm, and ectoparasites, for instance lice and bed bugs. Parasites are organisms ...

Parasites, ranging from tapeworms to microscopic protozoa like Giardia, pose significant health threats by infesting humans ...

SALT LAKE CITY, September 18, 2008—Researchers have discovered a connection between genes that could hold the key to a longer, healthier life. Using worms that share similar genetics to humans, ...

Scientists have found over a dozen parasitic worms in the eyes of a black bear, renewing fears that humans could face an emerging danger from the tiny worms that can cause blindness. The black bear ...