A flesh-eating cattle parasite is spreading in Texas as new far-flung screwworm cases are found

Two new cases of New World screwworm have been confirmed in Texas, with USDA efforts focused on eradicating the pest through sterile male fly programs. The parasite, which infests wounds of cattle and other animals, has led to debates over eradication methods, including a proposed poison bait opposed by some experts. Four confirmed cases have been identified, with scientists cautioning against overestimating the spread.