A microscopic parasite that quietly settles into the brain of humans and animals is not nearly as quiet as scientists once ...

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

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

People typically become infected with toxoplasmosis by eating undercooked meat or through contact with contaminated soil or cat feces. Once inside the body, the parasite is known for its ability to ...

Brain parasite cysts contain multiple active forms, not dormant cells, explaining treatment resistance and reactivation patterns.

A tropical parasite might be making its way into more temperate climates: Rats and snails in five Florida counties have tested positive for rat lungworm, a parasitic worm that can cause a rare type of ...

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 ...

An 8-centimeter worm has been found alive in the brain of a woman in Australia. [VOA] An 8-centimeter worm has been found alive in the brain of a woman in Australia, and researchers say it is the ...

CAMBRIDGE, United Kingdom -- A British man kept having headache after headache, and doctors couldn't figure out what was wrong. When they finally conducted an MRI, doctors discovered something ...

Add Yahoo as a preferred source to see more of our stories on Google. The difficult-to-detect meningeal worm is spread by white-tailed deer and is a notorious killer of moose. AP Photo/Jim Cole, File ...

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 ...