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.

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Equine Influenza

Frederick County, MD

Outbreak Identifier: 7300

Alert ID: 4844

January 23, 2026

Confirmed Case(s) - Voluntary Quarantine

Source: University Clinician

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

Horse 1:
Age: 4; Gender: Gelding; Breed: Warmblood (WB); Onset of Clinical Signs: 1/17/2026; Clinical Signs: Fever, cough, nasal discharge; Horse Status: Recovering;

Comments: The 4 year old Warmblood gelding was imported from Austria to Belgium, and then to the US via JFK, arriving on 1/13. The gelding was in quarantine until 1/16 and was subsequently transported to a private barn in MD and then to a boarding facility in MD on 1/17. Fever, cough and nasal discharge was noted, and veterinary care was sought on 1/19. The attending veterinarian referred the horse for further treatment and evaluation to a referral center in VA. The horse was admitted to the isolation facility and is currently recovering.;

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