Jun 4, 2026
USDA confirms New World screwworm larvae in a 3‑week‑old calf in Zavala County, Texas; 12‑mile infested zone and quarantines established
The USDA confirmed detection of New World screwworm larvae in a single 3-week-old calf in Zavala County, Texas. The larvae were identified in the calf's umbilical ar...