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 ...

Strands of parasitic worms found in dogs and cats are more likely to infect humans than other worm species, researchers said. The study found that 137 of the 737 worm species analyzed may cause ...

The mystery over a worm infestation found in a Vietnamese man last year has been solved, though not without adding another creepy wrinkle to the tale. The worms inside the man weren’t the Guinea worm ...

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 ...

The dreaded rat lungworm—a parasite with a penchant for rats and slugs that occasionally finds itself rambling and writhing in human brains—has firmly established itself in the Southeast US and will ...

Scientists recently revived microscopic creatures frozen for 46,000 years in the Siberian permafrost. The ancient nematodes, better known as roundworms, are able to shut their bodies down in ...