Tag: National Veterinary Services Laboratory

Cochliomyia hominivorax
Bob Gould

New World Screwworm Confirmed in Zavala County Calf First Case of NWS in Texas

AUSTIN, TX – On June 3, 2026, the Texas Animal Health Commission (TAHC) received confirmation of a detection of New World screwworm (NWS) in Zavala County, Texas. A sample collected from a three-week-old calf with an umbilical lesion was identified and confirmed as NWS by the National Veterinary Services Laboratory (NVSL) in Ames, Iowa.

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Horses test positive for Equine Infectious Anemia in Kansas

EIA is an incurable, infectious disease caused by a virus that can affect horses, donkeys, asses and other equine species.

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Vesicular Stomatitis (VS) Confirmed in Texas Cattle

This year s outbreak of vesicular stomatitis (VS) now has been confirmed, not only in horses in Texas and New Mexico, but also in two head of cattle in Starr County, about 225 miles south of San Antonio. The Texas Animal Health Commission (TAHC), the state s livestock and poultry health regulatory agency, received notification of the positive laboratory results late Tuesday, June 29.

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More Vesicular Stomatitis (VS) Confirmed in Texas & New Mexico

Horses on a total of three sites in Texas and four premises in New Mexico are known to be infected with Vesicular Stomatitis (VS), a painful blistering disease of livestock, such as horses, sheep, swine and deer. The viral disease appears spontaneously and sporadically in the southwestern U.S. and is thought to be transmitted by sand flies and black flies. The VS cases this spring are the first to be confirmed since l998.

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