Parasites are far more common than most people realize, yet their symptoms are often subtle and easily misinterpreted as ordinary digestive issues, stress-related changes, or nutritional problems.

Entamoeba histolytica (green) attacking human T cells. A new paper by UC Davis researchers lays out a strategy for investigating how this parasite can hide from the human immune system while attacking ...

If you've handled cat litter or eaten raw meat or unwashed produce, there’s a chance you might have a permanent toxoplasmosis infection spread throughout your body. When you purchase through links on ...

A painful burning sensation in a woman's legs turned out to be the result of a parasite burrowing into her brain, her doctors have revealed. The 30-year-old, from New England, likely contracted the ...

A microscopic parasite quietly infects the brains of millions worldwide. Known scientifically as Toxoplasma gondii, this tiny invader silently alters brain function without obvious symptoms. Beneath ...

The patient returned from travel to El Salvador, officials said. The U.S. has confirmed the first case of a flesh-eating parasite in a human, the Department of Health and Human Services (HHS) said on ...

Why do parasites harm their hosts? That's a question evolutionary biologists ask as they try to predict how a parasite might ...

A new analysis of sewer drains from the Roman fort of Vindolanda, close to Hadrian's Wall, has shown that the occupants were ...