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 ...

A common parasite long thought to lie dormant is actually much more active and complex. Researchers found that Toxoplasma ...

A parasite that lives permanently in the brains of millions may not be as uniformly dormant as scientists once thought.

A University of California, Riverside team of scientists has found that Toxoplasma gondii, a common parasite affecting up to one-third of the global population, is far more complex than previously ...

There are many parasites found in the gastrointestinal system of both dogs and cats. These invaders can cause serious illness if left unchecked. Here are the most familiar: ...