Equine Influenza — United States
On 9 Oct 2020, officials at the Washington State Department of Agriculture (WSDA) confirmed a Pierce County premises is under voluntary quarantine following a horse there testing positive for equine influenza (EI).
Equine influenza is a highly contagious respiratory disease that infects horses, ponies, and other equids such as donkeys, mules, and zebras. The virus causing it is spread via saliva and respiratory secretions from infected horses. Horses are commonly exposed via horse-to-horse
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