First U.S. screwworm case confirmed in South Texas
screwwormUSDASouth Texasparasitic flycattle industrylivestockagriculture.
Author: tnorthcutt
Date: 6/4/2026
Article Summary:
The U.S. Department of Agriculture confirms the first case of New World screwworm in South Texas, a parasitic fly that targets live flesh of warm mammals, including cattle, pets, and humans.