The U. S. Eradicated This Flesh Eating Parasite. Now It's Back The New World screwworm, a parasitic fly that eats away at living tissue, has returned to the United States after being eradicated decades ago.
Its reappearance in Texas and New Mexico is cause for concern, not only for the agricultural industry but also for people who own pets or engage in outdoor activities.
This parasite's resurgence is particularly alarming due to its voracious appetite for healthy living tissue. Female flies lay their eggs in open wounds or body openings, where larvae burrow into flesh and feed on it.