Overview
- Authorities confirmed a six-day-old calf with screwworm in Llera, Tamaulipas, the most northerly active detection to date, with 21 cattle on the property testing clear and no flies captured in reinforced traps.
- Senasica and the Mexico–U.S. CPA verified the first State of Mexico case in a goat in Tlatlaya, where officials placed the area in a preventive phase, inspected and treated 20 animals, and expanded local monitoring.
- Response teams activated rapid protocols that included epidemiological tracing, inspections of nearby production units, producer training on early lesion reporting, and expanded trapping in affected zones.
- Sader reported ongoing coordination with APHIS-USDA to release sterile flies in the north, complementing the binational program as Mexico prepares a Metapa, Chiapas facility slated to produce about 100 million sterile flies per week in the first half of 2026.
- With these detections, Mexico now counts cases in roughly 15 states since November 2024, and analysts warn the Tamaulipas finding could complicate efforts to restore U.S. imports of live Mexican cattle that have faced restrictions since mid-2025.