Disease Alerts

Number Confirmed: 1; 
Number Exposed: 74; 
Facility Type: Racetrack; 

Horse 1: 
Age: 2; Gender: Filly; Breed: Thoroughbred (TB); Usage: Racing; Onset of Clinical Signs: 12/8/2025; Confirmation Date: 12/10/2025; Horse Status: Affected And Alive; 

Comments: As of Dec 11, 2025 a single case of neurologic EHV-1 has been confirmed within the state of Florida. At this point in time, no other confirmed or suspect cases have been identified. The affected horse, a Thoroughbred racehorse originating from Tampa Bay Downs, is currently undergoing treatment in an isolation facility. The index case affected barn and epidemiological linked barn at Tampa Bay Downs have been quarantined and the remainder of the facility is under increased disease surveillance at the direction of the Florida Department of Agriculture and Consumer Services. The affected horse had been on-site at Tampa Bay Downs since late October, with no known connections to the ongoing U.S. EHM outbreak in Western performance horses.;

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, Jefferson, Grimes, Erath, Harris, Randall, Parker, Hood, Fort Bend, Bell and Wharton.;

To follow along with the list of all states with reported EHM positives, go HERE.

Number Confirmed: 1; 
Comments: Horse is displaying neurological clinical signs. The horse did not attend the WPRA or BFA but was stalled with horses that did, including one that tested positive for EHV-1 with only respiratory signs (Alert ID 4765); 
Previous Alerts: 4785, 4764

Number Confirmed: 1; 
Number Euthanized: 1; 
Comments: Horse was retested and did test negative for EHV-1 (nasal and blood). Original test was thought to be a weak positive. Horse was euthanized due to worsening chronic urinary tract issues.; 
Previous Alerts: 4764

Number Confirmed: 4; 
Comments: All cases are associated with the EHM outbreak that originated at the Women’s Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event.; 
Previous Alerts: 4724

Number Confirmed: 1; 

Horse 1: 
Confirmation Date: 11/27/2025; 

Comments: This case is associated with the EHM outbreak that originated at the Women's Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event.;;

Number Confirmed: 1; 
Comments: This case is associated with the EHM outbreak that originated at the Women's Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event.;;

Number Confirmed: 1; 

Horse 1: 
Confirmation Date: 11/29/2025; 

Comments: This case is associated with the EHM outbreak that originated at the Women's Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event.;;

Number Confirmed: 1; 

Horse 1: 
Age: 3; Gender: Gelding; Confirmation Date: 11/26/2025; 

Comments: This case is associated with the EHM outbreak that originated at the Women's Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event.;;

Number Confirmed: 2; 
Comments: This case is associated with the EHM outbreak that originated at the Women's Professional Rodeo Association (WPRA) World Finals and Elite Barrel Race event.;;