More than $1 million of donated vaccines have impacted thousands of horses.
Additional EIA cases have been confirmed in horses from Colorado and Canada.
Eleven more cases of equine influenza have been diagnosed in Washington state.
Effective December 1, 2018, horses that are granted a Therapeutic Use Exemption (TUE) for pergolide can remain on pergolide with no withdrawal of drug prior to competition and no need to file a Medication Report Form (MRF) each time they compete.
Eight cases of equine influenza have been reported in Washington State.
Researchers at the University of Kentucky and University of Louisville have produced a more complete picture of the horse reference genome.