New World screwworm (NWS) is a parasitic fly that can feed on the tissues of warm-blooded animals and lay their eggs in open wounds or body openings, such as the nose, eyes, ears, and mouth.
New World screwworm (NWS) is a parasitic fly that can feed on the tissues of warm-blooded animals and lay their eggs in open wounds or body openings, such as the nose, eyes, ears, and mouth.