In most cases, the rash from a wandering worm is in a foot, ankle, thigh, or rear—basically from a person walking or sitting ...

Human botfly larvae, for example, burrow under your skin, forming a pus-filled pimple. Meanwhile, thousands of young Loa loa worms can travel throughout your body —even across your eyeball!

which causes skin diseases and blindness. In both worms, the researchers saw viruses under a microscope — specifically, they saw a virus called BMRV1 in the former and OVRV1 in the latter.

Each worm is composed of 60 to 150 different segments covered by hollow bristles that easily get stuck in human skin and ...