Outbreaks | Equine Disease Communication Center

Updates on current disease outbreaks are listed here as they occur and will include the date listed, disease name, location and current status. Specific premises will not be named but the general location by town, county and state will be listed. When locations, events or horses are at risk they will be listed. Updates will be posted as they are received.

Disease

Outbreak States

Start Date

End Date

Search by Alert ID

Search by Outbreak ID

Equine Herpesvirus- Respiratory

Waller County, TX

Outbreak Identifier: 7231

Type: EHV-1

Alert ID: 4760

November 26, 2025

Confirmed Case(s) - Official Quarantine

Source: Attending Veterinarian

Number Confirmed: 4;
Number Exposed: 9;
Facility Type: Private Facility;

Horse 1:
Age: 2; Clinical Signs: fever, swollen lymph nodes, limb adema; Confirmation Date: 11/26/2025;

Horse 2:
Clinical Signs: fever but no other symptoms;; Confirmation Date: 11/26/2025;

Horse 3:
Age: 2; Clinical Signs: fever, no other symptoms; Confirmation Date: 11/26/2025;

Comments: The original horse remains positive for EHV-1 Neuropathic strain and remains asymptomatic. This horse was exposed at the Women's Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race Event in Waco, TX. The three other positive horses are secondary exposures.
Previous Alerts: 4756

For an up-to-date count of cases tied to this event, please visit : HERE

Search for County

Disease Alerts