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 ...

A University of California, Riverside team of scientists has found that Toxoplasma gondii, a common parasite affecting up to ...

National and Kansas healthcare officials are warning people to watch out for possible signs of a flesh-eating parasite.

Scientists have discovered a new species of human parasite that appears to be resistant to common antiparasitic treatments, such as ivermectin. "The infection tends not to be deadly, but heavy ...

Every year, malaria kills more than 600,000 people worldwide. Most of them are children under 5 in sub-Saharan Africa. But ...

More than 90% of popular freshwater fish in Southern California are carrying human-infecting parasites, researchers say. This poses a significant danger for those who like to eat freshly caught ...