New World Screwworm Confirmed in Zavala County Calf First Case of NWS in Texas

[Bob Gould]

AUSTIN, TX – On June 3, 2026, the Texas Animal Health Commission (TAHC) received confirmation of a detection of New World screwworm (NWS) in Zavala County, Texas. A sample collected from a three-week-old calf with an umbilical lesion was identified and confirmed as NWS by the National Veterinary Services Laboratory (NVSL) in Ames, Iowa.

Continue reading...