The U.S. Department of Agriculture (USDA) is reopening cattle, bison, and equine imports from Mexico in phases after closing the border on May 11 due to the threat of the New World Screwworm (NWS).
The reopening started July 7 at Douglas, Arizona, identified as the lowest-risk entry point due to close collaboration with Sonoran officials.
The screwworm, a parasitic fly eradicated in the U.S. in 1966, has recently been spreading in Mexico.
Its larvae burrow into wounds of animals, causing severe tissue damage and even death.
USDA Secretary Brooke Rollins stated, “We are continuing our posture of increased vigilance and will not rest until we are sure this devastating pest will not harm American ranchers.”