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

Two men in Massachusetts and New York, who are 61 and 66 years old, have been left riddled with parasitic worms after ...

A University of California, Riverside-led team has made an advance in the basic understanding of Plasmodium falciparum, the ...

A University of California, Riverside-led team has made an advance in the basic understanding of Plasmodium falciparum, the ...

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

Previous studies have linked the parasite to mind-altering behavior, such as risk-taking, depression and even schizophrenia.

While most hosts of the parasite can control the initial infection with few if any symptoms, Toxoplasma remains in the body for life as dormant cysts in brain, heart and muscle tissue.

While most hosts of the parasite can control the initial infection with few if any symptoms, Toxoplasma remains in the body for life as dormant cysts in brain, heart and muscle tissue.

While most hosts of the parasite can control the initial infection with few if any symptoms, Toxoplasma remains in the body for life as dormant cysts in brain, heart and muscle tissue.

Accumulating evidence suggests that a common single-celled parasite called Toxoplasma gondii may also be a contributor: An April 2025 study showed for the first time that “human sperm lose their heads ...