11 screwworm cases near Texas border raise U.S. outbreak risk, prompting heightened alerts.

The risk of screwworms reaching the U.S. has increased as 11 cases were reported near the Texas border, prompting health officials to raise alert levels. The parasitic flies, which can infect warm-blooded animals, have not been seen in the U.S. since 1982 but remain a concern due to their proximity to the border. Authorities are monitoring the situation closely and urging vigilance among livestock owners and veterinarians.