Equine Herpesvirus (EHV)


Neurologic EHV-1 Reported in Pennsylvania

July 24, 2009

Four horses stabled in Allegheny County, Pa., have been euthanized after developing neurologic signs consistent with equine herpesvirus-1 (EHV-1), according to a statement circulated by the Animal Health Emergency Management and Information... Read More


Equine Herpesvirus Myeloencephalopathy Resources Available

July 06, 2009

A 74-page report on equine herpesvirus myeloencephalopathy (EHM), for which equine herpesvirus-1 (EHV-1) has been identified as a causative agent, was released by the USDA Animal and Plant Health Inspection Services, Centers for Epidemiology and... Read More


Readers Share Top Two Vaccination Choices

June 12, 2009

Approximately 1,270 readers of TheHorse.com responded to a poll asking, "Which two vaccinations do you feel are most important?"

Read More


ACVIM Releases EHV-1 Consensus Statement

June 03, 2009

The American College of Veterinary Internal Medicine has released its consensus statement on equine herpesvirus-1 (EHV-1). According to the... Read More


New Cloning Technology Might Mean Improved EHV Vaccines

May 19, 2009

Japanese researchers recently reported the use of the technology "Bacterial Artificial Chromosome (BAC) cloning," which enabled the scientists to clone the entire genome of a virus in bacteria.

The technique could be used to mas... Read More


Vets Discuss Infectious Neurologic Diseases, AAEP 2008

May 10, 2009

What are the most important neurologic problems veterinarians face throughout the year? That's the question Debra Sellon, DVM, PhD, Dipl. ACVIM, associate dean of the Graduate School at Washington State University and professor of equine... Read More


Researchers Work to Better Diagnose, Treat Neurologic Herpesvirus

May 05, 2009

In their efforts to understand how equine herpesvirus-1 myeloencephalopathy (EHM) works, researchers are discovering better ways to diagnose, treat, and prevent the spread of the disease. In a review paper published in The Veterinary... Read More


Consider Temporal Nerve Problem in Neurologic Horse Diagnosis

April 28, 2009

When presented with a horse demonstrating facial nerve paralysis and/or a head tilt, neurologists say veterinarians should consider temporohyoid osteoarthropathy, a disorder of the hyoid apparatus (voice box) and associated structures. Although... Read More


Milne: Neurologic Disease

March 17, 2009

Dr. Stephen Reed described selected equine neurologic diseases during the 2008 AAEP Convention Milne Lecture.... Read More


Neurology is Not a Euphemism for Necropsy

February 17, 2009

Reed believes that future goals for managing neurologic disease in horses should be to decrease mortality and improve outcomes. This would be best achieved by developing improved diagnostic tools to facilitate early diagnosis and treatment... Read More


AAEP 2007 Convention Complete Coverage

February 12, 2009

A complete wrap-up of the 2007 American Association of Equine Practitioners Convention held in Orlando, Fla.... Read More


EHV-1 New Treatments (AAEP 2008)

February 12, 2009

... Read More


Turfway Barn Quarantined Pending Tests; EHV-1 Suspected

January 31, 2009

A barn at Turfway Park was quarantined Jan. 30 after a horse that showed signs of equine herpesvirus (EHV) was euthanized, track officials confirmed later that day.

The barn, which contains about 40 horses under the care of several... Read More


EHV-1 Quarantine Lifted at Fair Grounds

January 20, 2009

Officials from the Louisiana Department of Agriculture and Forestry and the Louisiana State Racing Commission have lifted the quarantine on a barn that had been in place since late December at Fair Grounds Race Course & Slots.

All 66... Read More


Equine Herpesvirus Causes Texas to Ban Ship-Ins

January 03, 2009

The Texas Racing Commission has issued a directive to prohibit ship-in horses from Fair Grounds racetrack in New Orleans, La., following the discovery of a horse positive for equine herpesvirus-1, according to Read More

Your veterinarian will help create a vaccination plan to keep your horse's immune system strong. What's right for your horse depends on his age, health history, and exposure to other animals, as well as your location.


Vaccination Yearly Planner

January 01, 2009

Immunizations are the cornerstone of disease prevention if given appropriately and in a timely manner.... Read More


EHV Quarantine Lifted at Delaware Training Barn

January 01, 2009

Delaware state officials lifted the quarantine for one of the two barns connected to a fatal case of EHV-1.... Read More


EHV: Horses Allowed to Ship In to Fair Grounds

December 30, 2008

While a barn in Fair Grounds' stable area remains under a Louisiana State Racing Commission (LSRC) quarantine, horses will again be allowed to ship in and race at the track beginning with the Dec. 31 card.

Quarantine and biosecurity measure... Read More


Louisiana Filly Positive for Herpesvirus; Shipped to Kentucky

December 26, 2008

A barn at a New Orleans race course (Fair Grounds) was quarantined today, Dec. 26, because a 3-year-old filly tested positive for equineherpes-1 (EHV-1).

It may take 10 days to clear other horses trained by Dallas Stewart, who trains the... Read More


Delaware Reports Mixed Test Results on Potential EHV-1 Horses

December 15, 2008

According to a statement released by the Delaware Department of Agriculture, on Dec. 10, veterinarians collected blood and nasal swab samples from all horses in the Delaware barn Read More


EHV-1 Found on Delaware Horse Farm

December 08, 2008

Heather Hirst, DVM, MS, Delaware State Veterinarian, announced Dec. 8 that PCR test results from the University of Kentucky confirm that a Standardbred horse in Kent County has tested positive for equine herpesvirus-1 (EHV-1), a highly infectiou... Read More


EHV Hold Order Lifted at Maryland Track

November 26, 2008

The Maryland Department of Agriculture (MDA) reported today that all 25 horses in Laurel Park's Barn 1 have tested negative for the neurologic form of equine herpesvirus-1 (EHV-1) on a second round of tests. These tests essentially end the... Read More


EHV: Laurel Park Lifts Ban on Offsite Runners

November 18, 2008

As the Maryland Department of Agriculture (MDA) announced earlier today that the final 20 samples from Laurel Park's barn 1 tested negative for neurologic equine herpesvirus, the Maryland Jockey Club has amended its restrictions on offsite... Read More


EHV-1 Positive Pony in Kentucky; Not Mutant Strain

November 18, 2008

A 7-year-old Paint pony gelding in Scott County, Ky., has tested positive for equine herpesvirus-1 (EHV-1) on PCR (polymerase chain reaction test) and has neurologic signs, according to a statement from the Kentucky State Veterinarian's... Read More


Neurologic Filly at Laurel Park Euthanized; Additional Tests Negative

November 17, 2008

The Maryland Department of Agriculture (MDA) reported today that no horses in Laurel Park's Barn 1, where the filly positive for neurologic equine herpesvirus-1 (EHV-1) wa... Read More