New World Screwworm

New World screwworm (NWS), Cochliomyia hominivorax, is a parasitic fly whose larvae infest living tissue of warm-blooded animals — including humans — causing rapidly progressing, potentially fatal myiasis. Risk extends to travelers, agricultural workers, and immunocompromised individuals. Surveillance, rapid case reporting, and larval specimen submission are critical containment tools.

Explore our latest articles to stay informed on the evolving science, policies, and innovations shaping New World screwworm detection, response, and eradication efforts.

USDA’s APHIS Updates Global Animal Disease Import Restrictions as Avian Influenza, African Swine Fever, and Foot-and-Mouth Disease

Biosecurity April 3, 2026

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New World Screwworm

USDA’s APHIS Updates Global Animal Disease Import Restrictions as Avian Influenza, African Swine Fever, and Foot-and-Mouth Disease

Biodefense Headlines – 2 November 2025