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

Edmonton, AB

Outbreak Identifier: 5001

Alert ID: 2345

November 25, 2021

Confirmed Case(s) - Official Quarantine

Source: Canadian Animal Heath Surveillance System

Number Confirmed: Multiple cases
Facility Type: Racetrack;
Breed: Standardbred; Clinical Signs: Fever, Respiratory Signs, Pneumonia, Coughing; Onset of Clinical Signs: 11/19/2021 Horse Status: Affected And Alive; Vaccination Status: Unvaccinated;
Notes: Equine influenza has been diagnosed in several Standardbred racehorses at a racetrack in Edmonton, Alberta. Horses started developing fevers (103-105°F) on November 19, 2021 followed by nasal discharge and deep barking coughs. A few have develop mild cases of pneumonia. Equine influenza virus was diagnosed on PCR testing of nasal swabs. The most severely affected horses had not been vaccinated recently for influenza. Affected horses are receiving supportive treatment and strict biosecurity measures are in place. For guidance on vaccination of horses for influenza and other equine contagious diseases, contact a veterinarian. For more information go to: Equine Influenza Factsheet

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