Disease Alerts

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: 10; 
Facility Type: Private Facility; 

Horse 1: 
Age: 5; Gender: Gelding; Breed: Quarter Horse (QH); Usage: training; Onset of Clinical Signs: 2/6/2026; Clinical Signs: fever, lethargic, nasal discharge; Confirmation Date: 2/12/2026; Horse Status: Recovering; Vaccination Status: Unvaccinated;

Comments: PCR positive for EHV-4 

Number Confirmed: 1; 
Number Suspected: 1; 
Number Exposed: 4; 
Facility Type: Private Facility; 

Horse 1: 
Age: Yearling; Gender: Filly; Breed: Draft; Clinical Signs: intermittent low-grade fever, mild intermittent respiratory signs since acquiring ~4 months ago; Confirmation Date: 2/2/2026; Horse Status: Affected And Alive; Vaccination Status: Vaccinated;

Number Confirmed: 1; 
Number Suspected: 1; 
Number Exposed: 26; 
Facility Type: Private Facility; 

Horse 1: 
Age: 15; Gender: Gelding; Breed: Thoroughbred (TB); Usage: Pleasure Riding; Onset of Clinical Signs: 1/30/2026; Confirmation Date: 2/6/2026; Horse Status: Quarantined; Vaccination Status: Status Unknown;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Facility Type: Private Facility; 

Horse 1: 
Age: Yearling; Gender: Filly; Breed: Thoroughbred (TB); Onset of Clinical Signs: 1/18/2026; Clinical Signs: The filly had clinical signs of colic and was shipped to a referral hospital for evaluation. At presentation, low-grade fever and mucopurulent nasal discharge was found. The horse was admitted to the isolation facility for treatment and monitoring. Nasal swab PCR was positive for EHV-4. The filly had shipped to VA from KY on 1/16/26.; Confirmation Date: 1/18/2026; Horse Status: Recovering;

Number Confirmed: 1; 
Facility Type: Private Facility; 
Comments: Reported as EHV-4 on USAHA daily news. Might have clicked wrong button during submission or reported out to USAHA incorrectly; 
Previous Alerts: 4857

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Facility Type: Private Facility; 
Comments: Under veterinary care. Mild upper resp signs. Had been to local riding club event.;

Number Confirmed: 2; 
Facility Type: Private Facility; 
Comments: Transposed numbers on previous EHV-1 quarantine release and reported as 7241; 
Previous Alerts: 4771

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 

Horse 1: 
Age: 2; Gender: Filly; Breed: Tennessee Walking Horses; Usage: Horse Show; Onset of Clinical Signs: 12/15/2025; Clinical Signs: cough, mucopurulent nasal drainage, hind limb edema, dull mentation, fever, off feed, elevated respiratory rate, elevated HR; Horse Status: Recovering; Vaccination Status: Status Unknown;

Comments: administered 5L LRS IV, filly is doing well and fever controlled;

Number Confirmed: 1; 
Number Exposed: 3; 
Facility Type: Private Facility; 

Horse 1: 
Age: 6; Gender: Gelding; Breed: Quarter Horse (QH); Usage: Trail Riding; Onset of Clinical Signs: 12/3/2025; Clinical Signs: Nasal Discharge, Cough; Confirmation Date: 12/8/2025; Horse Status: Quarantined; Vaccination Status: Undervaccinated;

Comments: This is EHV-4. There is no known epidemiological link to this horse and the horses that were exposed at the Waco event. This horse traveled to a trail ride in Alabama. 

Number Confirmed: 2; 
Number Exposed: Unknown; 
Facility Type: Private Facility; 
Comments: Horses have been quarantined with no symptoms (fever) since 16 November and tested negative on blood and swab. Quarantine released.; 
Previous Alerts: 4769