Overview

• Mexican authorities confirmed a New World screwworm case in Sabinas Hidalgo involving an 8‑month‑old cow moved from southern Mexico, treated at an early stage with emergency controls activated.
• The USDA says this is the outbreak’s northernmost detection, located less than 70 miles from Texas near the busy Monterrey–Laredo commercial corridor.
• U.S. ports remain closed to live imports of cattle, bison and horses from Mexico, and surveillance across Texas, Arizona and New Mexico has not detected screwworm flies.
• Sterile-insect operations are scaling up with an $8.5 million dispersal facility under construction in Edinburg and plans for a South Texas production plant targeting about 300 million sterile flies per week.
• Mexico’s ranching federation estimates losses could reach roughly $400 million if export bans persist through the year, as U.S. officials signal sustained border protections.