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New World Screwworm (NWS) has been detected in Texas, learn more about NWS.

Situational Update: New World Screwworm

Media Contact: TPWD News,  Business Hours, 512-389-8030

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Note: This item is more than a month old. Please take the publication date into consideration for any date references.

For additional resources, visit tpwd.texas.gov/screwworm. Media assets can be found on the TPWD New World Screwworm Media Kit page.

June 13, 2026: Sutton County, goat

June 12, 2026: Tom Green County, calf

June 11, 2026: Edwards County, goat

June 11, 2026: Zavala County, calf

June 9, 2026: Edwards County, calf

June 9, 2026: La Salle County, Calf

June 8, 2026: Gillespie County, goat

June 7, 2026: La Salle County, calf

June 5, 2026: Zavala County, calf

June 3, 2026: Index Case- New World screwworm confirmation in a Zavala County calf.

We have moved away from case-by-case situational updates. The most up to date case information can be found on the USDA New World Screwworm Confirmed Detections Dashboard.

Contact theTexas Animal Health Commission for livestock infestation information and theTexas Department of State Health Services (DSHS)for human infestation information.