WASHINGTON -- Think of these wiggly little creatures not as, well, gross, but as miniature surgeons: Maggots are making a medical comeback, cleaning out wounds that just won't heal. Wound-care clinics ...

The U.S. has blocked imports of live cattle, horses, and bison through southern border ports following the resurgence in Mexico of the New World Screwworm, a parasitic fly that infects animals and ...

Since then, more than 2,258 cases of screwworm have been identified in Mexico. Treatment requires a mix of manually removing the maggots, healing the lesions on the cows and using anti-parasite ...