More than 90% of popular freshwater game fish in Southern California contained an introduced parasite capable of infecting ...

Every night while you sleep, microscopic eight-legged parasites called Demodex mites emerge from your pores and crawl on your ...

In exchange for these mites emptying out gunk, the human body offers our melatonin, a hormone produced in the skin that helps ...

Female genital schistosomiasis, a neglected tropical disease, devastates women amid poor sanitation and medical misdiagnoses.

In a 2014 Nature paper, Ralston described this awkward process — trogocytosis, or “cell nibbling.” It was a revelation at the ...

Male fertility rates have been plummeting over the past half-century. An analysis from 1992 noted a steady decrease in sperm ...

Discover the shocking parasite contamination hiding in your healthy foods. Fresh spinach, berries harbor dangerous bugs.

For decades scientists have been puzzled by a tiny parasite that affects millions ... they can sometimes become deadly. Once inside the body, it chews in ulcers inside the colon, liquefying ...

Scientists have revealed how a parasite that affects millions of people every year evades our immune defenses.

Entamoeba histolytica is a single-cell parasite ... the body, attacking cells and creating liquefying abscesses. UC Davis parasitologist Katherine Ralston has studied the genome of Entamoeba and now ...

A parasite is an organism that lives on or inside your body and gets its nutrition from you. Parasites live in and feed on human blood, tissues, and intestines. As they multiply and lay eggs ...