Disease Alerts

Number Confirmed: 6; 
Number Exposed: 50; 
Number Euthanized: 6; 
Comments: The fifty (50) potentially exposed horses on this premises tested negative on the sixty (60) day retest. Quarantine on this premises has been released.; 
Previous Alerts: 5056

Number Confirmed: 3; 
Number Exposed: 2; 
Number Euthanized: 3; 
Facility Type: Private Facility; 
Comments: On Aug 13th, 2026 2 horses on a private facility in Clark County were confirmed by NVSL to be positive for EIA. The facility housed 5 total horses. Follow up regulatory testing found 1 additional horse to be positive for EIA. All 3 positive horses have been euthanized. The facility is under quarantine, and the remaining 2 cohort horses will be retested to confirm negative status prior to quarantine release.;

Number Confirmed: 16; 
Number Exposed: 11; 
Number Euthanized: 16; 
Comments: The eleven (11) remaining potentially exposed horses on this premises tested negative on the sixty (60) day retest. Quarantine on this premises has been released.; 
Previous Alerts: 5042, 4938

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

Horse 1: 


Comments: On Aug. 21, 2026, positive equine infectious anemia (EIA) results were confirmed by the Canadian Food Inspection Agency’s (CFIA) national reference laboratory for a horse located on a premises in Cowichan Valley, BC, which had been purchased from a premises in Alberta in December 2025. The owner requested an accredited veterinarian test the horse for EIA because it was exhibiting clinical signs compatible with the disease. A CFIA investigation is underway and as per program policy, movement controls have been placed on the infected horse and any on-premises contact animals. Initial reports indicate there are other equines on the affected premises. Movement controls will remain until all disease response activities have been completed, including follow-up testing and ordering the destruction of confirmed cases. Trace-out activities may require the CFIA to undertake actions at additional premises as outlined in the current policy. Improved biosecurity protocols have been strongly recommended to the owners to help control the ongoing spread of EIA and protect our national herd.;

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

Horse 1: 


Comments: On Aug. 21, 2026, positive equine infectious anemia (EIA) results were confirmed by the Canadian Food Inspection Agency’s (CFIA) national reference laboratory for a horse located on a premises in Foothills No. 31, Alberta. The horse had been tested by an accredited veterinarian at the owner’s request to fulfill a facility biosecurity requirement. No clinical signs of disease were noted by the veterinarian at the time of sampling. A CFIA investigation is underway and as per program policy, movement controls have been placed on the infected horse and any on-premises contact animals. Initial reports indicate there are other equines on the affected premises. Movement controls will remain until all disease response activities have been completed, including follow-up testing and ordering the destruction of confirmed cases. Trace-out activities may require the CFIA to undertake actions at additional premises as outlined in the current policy. Improved biosecurity protocols have been strongly recommended to the owners to help control the ongoing spread of EIA and protect our national herd.;

Number Confirmed: 1; 
Number Suspected: Unknown; 
Number Exposed: Unknown; 
Number Euthanized: 1; 
Comments: Quarantine Date: 6/17/26. Quarantines will not be released until TAHC’s requirements are met. TAHC staff work closely with the owners and local veterinarians to monitor potentially exposed horses and implement biosecurity measures.;

Number Confirmed: 1; 
Number Exposed: 63; 
Facility Type: Private Facility; 

Horse 1: 
Age: 28; Gender: Mare; Breed: Haflinger; Usage: Trail Riding; Clinical Signs: none; Horse Status: Quarantined; 

Comments: Horse was bought from riding camp herd dispersal in February with no previous Coggins test history. The new owner tested during routine spring vaccine visit. Disease trace investigation is in progress.;

Number Confirmed: 2; 
Number Exposed: 1; 
Number Euthanized: 2; 
Comments: A confirmed EIA positive equid must be euthanized or quarantined for life 200 yards away from any EIA negative equid as per USDA EIA program rules. Euthanasia was elected for these cases and was witnessed by CDFA veterinarians on May 20th. The one (1) potentially exposed horse on this premises tested negative on the sixty (60) day retest. Quarantine on this premises has been released.; 
Previous Alerts: 4994

Number Confirmed: 6; 
Number Exposed: 7; 
Number Euthanized: 6; 
Comments: A confirmed EIA positive equid must be euthanized or quarantined for life 200 yards away from any EIA negative equid as per USDA EIA program rules. Euthanasia was elected for these cases and was witnessed by CDFA veterinarians on May 18th. The seven (7) potentially exposed horse on this premises tested negative on the sixty (60) day retest. Quarantine on this premises has been released.; 
Previous Alerts: 4993

Number Suspected: Unknown; 
Number Exposed: Unknown; 
Number Euthanized: 1; 
Comments: The infected horse was euthanized on 07/16/2026, but the other horses at the facility will remain under quarantine until a sixty day retest is conducted and they are found negative per WSDA and USDA program requirements.; 
Previous Alerts: 5061