New World Screwworm: What to know about the parasite threatening the food supply

Published August 19, 2025 5:59pm ET



Multiple departments in the Trump administration are working to combat the proliferation of a flesh-eating parasite quickly spreading northward through Central America and threatening the United States’s food supply. 

U.S. Agriculture Department Secretary Brooke Rollins said in a statement on Tuesday that her Department is working closely with the Department of Health and Human Services to stave off infestations caused by the New World Screwworm, a fly that lays its eggs in openings or wounds in warm-blooded animals.

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