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Source: United States Department of Agriculture Animal and Plant Health Inspection Service Confirmed Case(s) – Official Quarantine Comments: Since the last situation report (11/26/2025), there has been one (1) new confirmed positive equine premises identified in Arizona (Maricopa County – new affected county). All confirmed cases in the 2025 outbreak have …
Confirmed Case(s) – Official Quarantine Source: Arizona Department of Agriculture Number Confirmed: 1Number Exposed: 8Number Euthanized: 1Facility Type: Private FacilityComments: No known direct exposure or epidemiologic link to any of the previously reported quarantined premises in Arizona nor any of the known exposure events in Texas or Oklahoma. For more information go to: https://www.equinediseasecc.org/equine-herpesvirus See past …
Information Only Source: Texas Animal Health Commission Comments: To date 30 cases have been confirmed by the Texas Animal Health Commission with the last case confirmed Nov. 27, 2025. Five of the submitted cases died or were euthanized. Cases have been identified in the following counties: Montgomery, Lee, McLennan, Ellis, Wise, …
Source: United States Department of Agriculture Animal and Plant Health Inspection Service Confirmed Case(s) – Official Quarantine Comments: Since the last situation report (11/24/2025), there has been one (1) new confirmed positive equine premises identified in Arizona (Santa Cruz County – new affected county). All confirmed cases in the 2025 …
Source: Oklahoma State Veterinarian Love County, OK – Equine Herpesvirus- Neurologic Confirmed Case(s) – Official Quarantine Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: Unknown; Comments: Horse is from Texas, being treated in Oklahoma, and has been diagnosed with EHM. Horse attended the WPRA in Waco and the BFA in Guthrie. Horse was displaying mild neurological signs …
Source: Attending Veterinarian Exposed Horses – Official Quarantine Number Confirmed: 1; Number Exposed: 30; Facility Type: Private Facility; Horse 1: Age: 6; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Barrel Racing; Onset of Clinical Signs: 11/18/2025; Clinical Signs: Not Clinical. Primary exposed at WPRA in Waco. Tested positive on nasal swab and blood on In-House Fluxergy PCR; Confirmation Date: 11/18/2025; Horse Status: Affected And Alive; Vaccination Status: Status Unknown; This case is associated …
Parker County Confirmed Case(s) – Official Quarantine Source: Private Practitioner and State Animal Health Official Number Confirmed: 1; Number Suspected: Unknown; Number Exposed: Unknown; Number Euthanized: 1; Facility Type: Private Facility; Horse 1: Breed: Quarter Horse (QH); Onset of Clinical Signs: 11/21/2025; Horse Status: Euthanized; Comments: This case is associated with the EHM outbreak that originated at the Women’s Professional Rodeo Association (WPRA) World Finals and …
Source: United States Department of Agriculture Animal and Plant Health Inspection Service Confirmed Case(s) – Official Quarantine Number Confirmed: 1; Comments: Since the last situation report (10/31/2025), there has been one (1) new confirmed positive equine premises identified in Arizona (Gila County – new affected county). All confirmed cases in the 2025 outbreak …
Confirmed Case(s) – Official Quarantine Source: State Veterinarian Number Confirmed: 2; Number Exposed: 3; Comments: One horse traveled to Waco for WPRA; this horse tested PCR positive on both nasal swab and blood and has exhibited fever and neurologic symptoms. The second horse had not traveled but became ill as a result of exposure to …
Source: Arizona Department of Agriculture Exposed Horses – Official Quarantine Number Confirmed: 1; Number Exposed: 3; Facility Type: Private Facility; Comments: Horse is nasal swab PCR positive for EHV-1 D752 but clinically normal, not febrile, no neurologic signs. This case is associated with the EHM outbreak that originated at the Women’s Professional Rodeo Association (WPRA) World Finals and …