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 ...

Everything is bigger in Texas. Heavy rains around Houston are expected to bring out poisonous, foot-long worms that regenerate if cut in half, officials warned this week. The nightmarish hammerhead ...

Today we have modern antiparasitic drugs. But 130 years ago, our forebears had nothing but quack cures and prayers to drive out tapeworms.

Parasites, ranging from tapeworms to microscopic protozoa like Giardia, pose significant health threats by infesting humans through contaminated food, water, soil, or insect bites. These organisms can ...

It might be Shark Week, but sharks aren't the only hammerheads to watch out for this summer. An invasive worm that packs the poisonous power of a puffer fish and the slithering stamina of a snake has ...