Nearly 850 species of parasites are known to infect people; some, like the potentially deadly plasmodium parasite that causes ...

A red, parasitic worm turned out to be behind the woman's wide array of symptoms. | Credit: Hossain, M., Kennedy, K. J., ...

It infects nearly one-third of the global population, yet its microscopic size makes the parasite difficult for scientists to study. That parasite is Toxoplasma gondii, a widespread organism that ...

Researchers said the parasite is "an emerging veterinary and public health concern." ...

Doctors have identified a rare parasite never before seen in humans after a woman developed a severe lung infection, organ damage, and memory loss. Here’s what was revealed about the unusual medical ...

Scientists have uncovered a crucial weakness in the malaria parasite that could open the door to new treatments. Researchers identified a protein called Aurora-related kinase 1 (ARK1) that acts like a ...

Add Yahoo as a preferred source to see more of our stories on Google. In addition to eggs, tissue cysts present in the meat of warm-blooded animals can spread toxoplasmosis as well if they are not ...

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 Monday. New World screwworm (NWS) is a species of parasitic flies ...

Rat lungworm, a parasite that can infect certain animals and humans and prove fatal, was found in wild opossums, rats and a wallaby at the San Diego Zoo, according to a new study published by the U.S.

A cat parasite that can infect humans is called toxoplasma and it's a parasite that can live in all cat species. The parasite can spread to almost all other birds and mammals, not just humans, on ...

Male fertility rates have been plummeting over the past half-century. An analysis from 1992 noted a steady decrease in sperm counts and quality since the 1940s. A more recent study found that male ...