Mexico activates emergency controls after flesh-eating worm found near US border - The screwworm parasite attacks warm-blooded animals, including humans ...

State health officials have issued a health advisory warning about a rare and previously eradicated parasite that can burrow itself into the flesh of humans and animals.

These deep-sea worms, which are 1% arsenic, are only found at the hottest hydrothermal vents in the western Pacific.

New World screwworm larvae are less than an inch long but can cause major injuries in humans, including wounds and open sores ...

A parasitic fly whose maggots can infest living livestock, birds, pets and humans, could threaten California soon.