A Paint gelding in Miami County, Kansas, was confirmed with equine influenza on June 17.
Washington's state veterinarian confirmed equine influenza in Clark County and equine strangles in Spokane County.
A female donkey tested positive for equine influenza and equine strangles, and despite aggressive treatment, she died from her illnesses.
One horse in Rock County and two horses in Waukesha County, Wisconsin, were confirmed with equine influenza; all had attended the same Illinois horse show in April.
There are a potential dozen cases of equine influenza, including confirmed cases in four horses that traveled to a show in New York from Providence County, Rhode Island.
The Washington State Veterinary Office confirmed a case of equine influenza at a boarding facility in Thurston County.
A Quarter Horse gelding in Clackamas County, Oregon, was confirmed positive for equine influenza in April 2021.
New data reflects the impact of antigenic drift and what this means for equine influenza vaccination strategies.
Two Paint geldings on a private facility in Clackamas, Oregon, were confirmed positive with equine influenza, with two others suspected and four others exposed.
One horse tested positive for equine influenza at a facility where two other horses are suspected with the disease and 40 horses were exposed.
Respiratory equine herpesvirus (EHV-1) and equine influenza were confirmed at boarding facilities in Kitsap County, Washington.
A boarding farm in Kitsap County, Washington, had confirmed and suspected cases of equine influenza in February 2021.