Two horses were confirmed with neurologic equine herpesvirus in Wheatland County, Alberta, Canada, with 10 being suspected of having disease and 20 horses exposed.
Two Massachusetts horses were confirmed with neurologic equine herpesvirus—and six others were suspected of having the disease—at boarding facilities in Middlesex and Plymouth Counties.
Two horses on a premises in Morris County, New Jersey, tested positive for neurologic equine herpesvirus (also known as equine herpesvirus myeloencephalopathy or EHM).
These are the fifth and sixth reported cases of neurologic equine herpesvirus in Ontario this year.
An aged Quarter Horse mare was confirmed positive for neurologic herpesvirus in Santa Clara County, California.
More horses at Laurel Park Racetrack in Maryland have tested positive for EHV-1, one of which was euthanized due to neurologic signs.
A neurologic warmblood mare in Sonoma County, California, tested positive for equine herpesvirus with 40 horses exposed.
A private facility had two horses confirmed with neurologic equine herpesvirus and 22 others exposed.
A horse in Davis County, Utah, has been euthanized due to neurologic equine herpesvirus; two other horses are suspected of having the virus and 100 other horses have been exposed.
Additional Kentucky horses test positive for the neuropathogenic strain of equine herpesvirus; index case from Woodford County was euthanized.
One neurologic horse competed at Old Salem Farm on March 5 prior to exhibiting clinical signs.
A 3-year-old Thoroughbred filly in Woodford County, Kentucky, has tested positive for the neuropathogenic strain of EHV-1.
Unrelated horses in Anne Arundel and Cecil Counties in Maryland were confirmed with neurologic equine herpesvirus.
The Florida Department of Agriculture and Consumer Services reported a second horse was EHV-1 positive—but not showing neurologic signs—at the index facility in Marion County where there was a positive neurologic equine herpesvirus case earlier this month.
A Warmblood mare was confirmed with neurologic equine herpesvirus at a boarding facility in Marion County, Florida.
A horse boarding facility in Los Angeles County has had no more cases in 14 days so the EHM quarantine was released.
The Regional Municipality of Peel and the Regional Municipality of Niagara in Ontario, Canada, reported cases of neurologic equine herpesvirus.
An Ontario private equine facility euthanized three horses due to neurologic problems and had two additional horses confirmed with EHV-1.
The Virginia Department of Agriculture and Consumer Services reported a confirmed case of neurologic equine herpesvirus in a Hanover County horse.