New World Screwworm Resource Center
Guidance and resources on the New World screwworm
This resource hub connects veterinarians and animal health professionals with the latest guidance on New World screwworm (NWS) from FDA and USDA APHIS.
Let’s talk about your needs
What is New World screwworm?
New World screwworm (Cochliomyia hominivorax) is a parasitic fly known for its larvae (maggots), which burrow into and feed on living tissue of warm-blooded animals. These include livestock, pets, wildlife, occasionally birds, and in some rare cases, humans.
Additional official resources
FDA – New World screwworm information for veterinarians
Learn more
FDA – Animal drugs for New World screwworm
Learn more
USDA APHIS – Screwworm overview
Learn more