A parasitic worm capable of infecting the human brain has established local transmission in California for the first time, ...

Rat lungworm, a dangerous parasite, has been detected in San Diego County wildlife, according to the CDC, marking its first presence in the western U.S.

U.S. health authorities have confirmed the country’s first human infection involving the New World screwworm, a flesh-eating parasite. The case was identified on August 4 in Maryland in a patient who ...

TAMPA, Florida -- It's like something out of a science-fiction movie -- a brain-eating parasitic worm living in your eye. But for one Florida man, it was reality. ***Warning: This story contains ...

Screwworms are flesh-eating parasites that hatch in open wounds and burrow into skin. Left untreated, they can be deadly. The majority of cases are in livestock. A Maryland resident who traveled from ...