U.S. imposes new restrictions on Mexican cattle imports due to screwworm concerns

In August 2026, the U.S. imposed new restrictions on cattle imports from Mexico due to a screwworm outbreak. Sonora, chosen as a safe crossing point, confirmed its first case just days before reopening. The new rules limit imports to 700 cattle per day, impacting both U.S. and Mexican ranchers already facing livestock shortages.