A shocking new study shows that 90% of freshwater fish in Southern California may be carrying parasites that can infect ...

Invasive hammerhead worms are spreading in Texas, and have been spotted in Houston, Dallas, Austin and toward the coast.

A second man from Albany, N.Y., aged 66, who received the donor’s other kidney also developed a parasitic infection, the ...

"The thing people need to know is don't kill it, don't squish it, don't cut it up." Officials issue warning over terrifying toxic worms emerging from ground after rainfall: 'The worms are demonic' ...

Eating raw fish can come with the risk of ingesting sushi worms. Here's what those scary critters actually are, and how to ...

These tiny worms live in eyes, feed on tears and could transmit to humans The worms have previously been found in pets in the U.S. Now, the discovery of the worms in a black bear has prompted ...

The 61-year-old man received a new kidney from a deceased donor after being diagnosed with “nephrosclerosis-related end-stage ...

Screwworm parasites primarily infect livestock, but human cases have risen in Central America after the pests escaped ...

Ticks are parasites that bite and feed on humans and pets. They can spread Lyme disease and other infections. Here's what to ...

Toxoplasma gondii is an incredibly pervasive parasite that can infect pretty much any warm-blooded animal, taking up ...

Study finds that the pace of evolution in organisms differs depending on the type of cells involved. A new study finds that ...