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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Strangles

Calvert County, MD

Outbreak Identifier: 7484

Alert ID: 5052

June 25, 2026

Confirmed Case(s) - Official Quarantine

Source: Maryland Department of Agriculture

Number Confirmed: 1;
Number Suspected: Unknown;
Number Exposed: 20;
Facility Type: Private Facility;

Horse 1:
Age: 6; Gender: Stallion; Breed: Pony Cross; Usage: Pleasure Riding; Onset of Clinical Signs: 6/19/2026; Clinical Signs: mild upper respiratory, mild fever, and submandibular abscess; Confirmation Date: 6/25/2026; Horse Status: Affected And Alive; Vaccination Status: Status Unknown;

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