5 days ago · Get essential prevention guidance to protect livestock and other animals from New World screwworm, including early detection, management tips, and APHIS resources.

Infestation of a live vertebrate animal by a maggot is scientifically termed myiasis. While the maggots of many fly species eat dead flesh, and may occasionally infest an old and putrid …

Sep 30, 2025 · New World screwworm (NWS) infestation is a type of myiasis that occurs when NWS fly larvae (Cochliomyia hominivorax) infest the living flesh of warm-blooded …

4 days ago · Roughly 60 years ago, the United States eradicated the New World screwworm, an insect that feeds on living tissue. But now, the flesh-eating creature appears to be creeping …

1 day ago · Earlier this fall, the New World screwworm – the flesh-burrowing larva of a blowfly (Cochliomyia hominivorax) – was detected in cattle in Mexico just 70 miles from the U.S. …

5 days ago · California researchers are preparing for the possible return of the New World screwworm, a parasitic fly that feeds on living flesh and once devastated U.S. livestock. By …

Jun 3, 2025 · The New World screwworm (NWS, Cochliomyia hominivorax) is a parasitic fly native to the Western Hemisphere. It lays eggs in the living tissue of fresh wounds in warm-blooded …

Aug 26, 2025 · Cochliomyia hominivorax, the New World screw-worm fly, or screw-worm for short, is a species of parasitic fly that is well known for the way in which its larvae (maggots) eat the …

Aug 25, 2025 · U.S. officials confirmed a case of the flesh-eating parasite in a person who traveled from El Salvador. Screwworm typically affects cattle in South America but has spread …

6 days ago · Multi-agency response team provides updates on One Health approach to New World screwworm; biosecurity and sterile fly eradication efforts underway.