EHV-1

As horses begin to circulate more to events and shows, veterinarians need to be aware of the potential of equine herpesvirus infections.

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.

The American Association of Equine Practitioners (AAEP) has updated the resources they have available on equine herpesvirus (EHV) and equine herpesvirus myeloencephalopathy (EHM).

A case of neurologic equine herpesvirus was confirmed in Grand Isle County, Vermont.

The Colorado State Veterinarian's office reported a confirmed case of respiratory equine herpesvirus (EHV-1) in Larimer County.

Three Colorado premises are under quarantines or hold orders due to confirmed equine herpesvirus or exposure to febrile horses that became neurologic.

Episode 53 of the Disease Du Jour podcast brings you some basics and research updates on equine herpesvirus from Dr. Gisela Hussey.

Read the Maryland State Veterinarian's response to Kentucky's concerns with testing protocols for the current EHV-1 outbreak at Laurel Park and Pimlico racetracks.

The quarantine for respiratory equine herpesvirus at the Florida Winter Equestrian Festival should spark biosecurity measures for transported horses from that location.

A horse at the Winter Equestrian Festival became febrile, was diagnosed with EHV-1, but has not exhibited neurologic signs.

Following is an April 3 update from the Kentucky State Veterinarian's office about the EHV-1 incident at Blackwood Training Center in Woodford County, Kentucky.

These are the fifth and sixth reported cases of neurologic equine herpesvirus in Ontario this year.

The Florida Department of Agriculture and Consumer Services (FDACS) posted the following notification on March 31, 2021.

More horses tested positive for equine herpesvirus in Maryland and a different approach has been taken to only test symptomatic horses.

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.

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 warmblood gelding in Los Angeles County, California, was exhibiting neurologic signs and tested positive for EHV-1 non-neuropathogenic strain.

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.

The Kentucky State Veterinarian's office is being proactive in disseminating information and offering assistance to facility and equine event managers to stave off spread of neurologic equine herpesvirus.