AUSTIN, Texas — Federal officials confirmed two additional New World screwworm cases in Texas Thursday, bringing the state’s total to eight and the nationwide count to nine, according to the U.S. Department of Agriculture.
The newly confirmed cases involve a goat in Edwards County and cattle in Zavala County, according to USDA data.
PREVIOUS COVERAGE | New World Screwworm case confirmed in Texas, bringing total of cases in the U.S. to six
Texas now accounts for eight of the nine confirmed U.S. cases:
- June 11, 2026 — Edwards County, Texas: goat
- June 11, 2026 — Zavala County, Texas: cattle
- June 9, 2026 — Edwards County, Texas: cattle
- June 8, 2026 — Gillespie County, Texas: goat
- June 8, 2026 — La Salle County, Texas: cattle
- June 7, 2026 — Lea County, New Mexico: dog
- June 7, 2026 — La Salle County, Texas: cattle
- June 5, 2026 — Zavala County, Texas: cattle
- June 3, 2026 — Zavala County, Texas: cattle
USDA APHIS said it continues to work closely with the Texas Animal Health Commission on surveillance, reporting and control efforts. All nine cases reported nationwide involve domestic animals; no cases have been confirmed in wildlife.
New World screwworm is a parasitic fly whose larvae burrow into the living flesh of warm-blooded animals, causing severe tissue damage and potential death. The USDA has released more than 130 million sterile male flies in Texas since January in an effort to break the pest’s reproductive cycle.
Officials urge livestock and pet owners to watch animals for draining wounds, maggots, signs of discomfort and lesions near body openings. Suspected cases should be reported immediately to a veterinarian or USDA. The U.S. food supply is not at risk.
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More information is available at screwworm.gov.
