USDA announced on Friday the coordinated, phased reopening of southern U.S.-Mexico livestock ports starting 24 August 2026, after more than a year of closures due to the spread of New World screwworm (NWS). Douglas, Arizona, will be the first port of entry to resume cattle trade on 24 August. This port borders Sonora, Mexico, which USDA identifies, along with Chihuahua, as Mexico’s lowest-risk states for NWS due to strong inspection programs and geographic distance from southern Mexico, where most cases are concentrated. The closest active case to the Douglas port is 325 miles away and was detected on 22 July 2026. Mexican feeder cattle have averaged about 3 percent or more of the total annual calf crop in the U.S. They are not a domi...