New World screwworm (NWS) is a serious pest of livestock and wildlife. USDA is leading a coordinated One Health response to combat NWS. This is not a food safety issue—the U.S. food supply remains safe. The current risk to animals and people in the United States is very low.
The Latest Facts About NMS
Protecting U.S. livestock and wildlife is a national security priority. Our unified response brings together multiple Federal agencies alongside State, Tribal, local, and Territorial partners and industry. The United States has defeated NWS before—together, we will do it again!


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