The Texas Animal Health Commission (TAHC) has confirmed a case of New World Screwworm (NWS) in Zavala County, Texas, on June 3, 2026. The affected animal was a 3-week-old calf, and larvae were identified in its umbilical area.
Please review the full press releases from TAHC and the United States Department of Agriculture (USDA) regarding this confirmed case:
TAHC Press Release:
https://myewa.org/wp-content/uploads/2026/06/2026-06-03_NWS_InitialCase.pdf
USDA Press Release:
https://www.aphis.usda.gov/news/agency-announcements/usda-confirms-presence-new-world-screwworm-united-states
TAHC Producer Guidance & Detection Protocols:
https://myewa.org/wp-content/uploads/2026/06/NWS-ProducerGuidance.pdf
EWA is monitoring this situation closely and will continue to communicate updates and additional information as it becomes available.
If you have any questions, please contact the EWA office.