A microscopic parasite that quietly settles into the brain of humans and animals is not nearly as quiet as scientists once believed. New work on Toxoplasma gondii suggests that the so‑called dormant ...

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

The dynamic lifecycle of the malaria parasite means that the density of the Plasmodium can suddenly drop below the level of detection in asymptomatic people -- especially when older, less sensitive ...

River otter poop is the perfect for Katrina Lohan's research as it contains DNA from worms, fish, and other organisms, including parasites. Image: National Zoo River otters are unequivocally cute. 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 ...

Pricey deworming remedies are being touted as cure-alls. Even supermodel Heidi Klum gave it a go. But health experts say they’re not what we need ...

Why have some orchids stopped photosynthesis and become parasites feeding on fungi? Researchers found that in at least one species the transition may be driven by the opportunity -- more than by the ...

River otters are unequivocally cute. But their eating habits are not so adorable. Most animals—humans included—separate the place where they defecate from the place where they eat. But river otters ...