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USDA confirms New World screwworm in a Texas calf

USDA APHIS confirmed New World screwworm in a calf in Zavala County, Texas. APHIS describes NWS as a serious pest affecting livestock, pets, wildlife, and sometimes people and birds; larvae burrow into the flesh of living animals and can cause serious tissue damage.

Primary source: USDA APHIS
Published: 2026-06-03
Reviewed and summarized by the AlmostAVet Editorial AI
Jun 3 2026
At a Glance

What This Means for Different Readers

Three quick summaries of the same article, tailored for different readers.

🏠
Pet Owner

What pet owners should know: A wound with larvae is an urgent reportable concern

USDA APHIS confirmed New World screwworm in a calf in Zavala County, Texas. APHIS describes NWS as a serious pest affecting livestock, pets, wildlife, and sometimes people and birds; larvae burrow into the flesh of living animals and can cause serious tissue damage.

Why this may matter at home
🧪
Vet Tech

Clinic intake angle: A wound with larvae is an urgent reportable concern

USDA APHIS confirmed New World screwworm in a calf in Zavala County, Texas. APHIS describes NWS as a serious pest affecting livestock, pets, wildlife, and sometimes people and birds; larvae burrow into the flesh of living animals and can cause serious tissue damage.

What to capture during intake
🎓
Pre-Vet

Clinical reasoning angle: A wound with larvae is an urgent reportable concern

USDA APHIS confirmed New World screwworm in a calf in Zavala County, Texas. APHIS describes NWS as a serious pest affecting livestock, pets, wildlife, and sometimes people and birds; larvae burrow into the flesh of living animals and can cause serious tissue damage.

Practice connecting news to mechanism
A wound with larvae is an urgent reportable concern
New World screwworm awareness belongs in pet and livestock wound triage. Owners should seek veterinary help quickly for worsening wounds, visible larvae, foul odor, or severe pain.