USDA Confirms Screwworm Case in New Mexico Horse as Top Mexico Cattle Port to Reopen Sept 24

The timing is the story: a confirmed New World screwworm infection in a US horse lands the same day Washington insists its busiest Mexican cattle gateway will reopen on schedule. That juxtaposes a live animal-health risk against trade continuity, with the quarantine zone and sterile-fly releases as the containment levers. The question worth watching is whether detections stay isolated to this single case or cluster near the border corridor, since that, not the reopening date itself, would determine whether the port's schedule holds.