New Mexico officials urge federal action after confirmed New World screwworm case in Texas

In the first incursion in decades, a New World screwworm parasitic fly was detected in a 3-week old Texas calf following the slow march of the parasite through Mexico in recent months.

By: Danielle Prokop

Outlets: Source New Mexico

Published: June 4, 2026

Words: 463

Last Updated: 1 month, 1 week ago

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New Mexico officials called on federal officials to do more to protect the state’s livestock and wildlife in the wake of the first confirmed case of a parasitic fly in neighboring Texas Wednesday — the first incursion of New World screwworm in the U.S. in decades.

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The parasitic fly was detected in a 3-week old calf, and there have been no other detections in …

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