Equine Herpesvirus (EHV)

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Acyclovir for Treating EHV-1 Myeloencephalopathy

February 16, 2004

Acyclovir is an anti-viral drug with a high activity and selectivity for herpesviruses. It has been used in equine outbreaks, even though past studies have not established a clear-cut benefit of using the drug.... Read More

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Great Britain Revises Codes on Infectious Diseases

December 11, 2003

Britain's Horserace Betting Levy Board has extensively changed its codes of practice regarding the infectious diseases contagious equine metritis (CEM), equine herpesvirus (EHV), and equine viral arteritis (EVA), which can severely disrupt... Read More

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Equine Herpesvirus-1 Outbreak in Oregon

November 01, 2003

Since Aug. 10, 16 horses at Brookhill Stables in Goble, Ore., and two horses from a nearby private farm have shown respiratory and/or neurologic signs consistent with equine herpesvirus type 1 (EHV-1), although not all were tested for the... Read More

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Oregon Equine Herpesvirus-1 Outbreak

September 19, 2003

In the last month, 16 of the 19 horses at Brookhill Stables in Goble, Ore., and two horses from a nearby private farm, have showed respiratory and/or neurologic signs consistent with equine herpesvirus type 1 (EHV-1), although not all have been... Read More

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EHV Outbreak in England Unusual; Some Cases Could be EHV-4

June 01, 2003

"It's very unusual to get EHV-1 outbreaks all at the same time on different premises," said James Wood, BSc, BVetMed, MSc, PhD, MRCVS, DLSHTM, Dipl. ECVPH, head of epidemiology at the Animal Health Trust (AHT) in the United Kingdom, about the... Read More

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EHV-1 Confirmed at Kentucky Racetrack; Pennsylvania Track Lifts Quarantine

May 01, 2003

Equine herpesvirus type 1 (EHV-1) was confirmed as the cause of illness in three Thoroughbreds stabled in a training barn at Turfway Park in Florence, Ky. The March 18 announcement of this fact followed treatment of EHV-1 outbreaks in Ohio and... Read More

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EHV Outbreak in the U.K. Unusual; Asymptomatic Cases Could be EHV-4

April 18, 2003

“It’s very unusual to get EHV-1 outbreaks all at the same time on different premises,” said James Wood, BSc, BvetMed, MSc, PhD, MRCVS, DLSHTM, Dipl. ECVPH, Head of Epidemiology at the Animal Health Trust in the United Kingdom, about the recent... Read More

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Details of the U.K. EHV-1 Outbreak

April 15, 2003

The United Kingdom’s Animal Health Trust (AHT) has detailed the country’s EHV-1 outbreak that began in early March. At least 12 horses have been euthanized due to advanced neurologic deterioration resulting from infection.

The first... Read More

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EHV-1 in the United Kingdom

April 14, 2003

Several regions of the United Kingdom have been fighting the neurologic form of equine herpesvirus type 1 (EHV-1). At least 12 horses have been euthanized due to advanced neurologic deterioration resulting from infection. According to the Britis... Read More

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Quarantine Lifted on Turfway Park Horses

April 04, 2003

The Kentucky Department of Agriculture will release the quarantine placed on Barn 15 at Turfway Park as of 12:01 a.m. Saturday (April 5). The 80-horse barn was placed in quarantine after three horses tested positive for equine herpesvirus type 1... Read More

Article

Keeneland Requiring Health Certificate for Horses

April 02, 2003

Keeneland, which opens for its spring meet April 4, is requiring all horses that enter the grounds to have a health certificate written within 72 hours of arrival.

River Downs in Ohio implemented a similar policy in the wake of the... Read More

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Herpesvirus Type 1 Hits Hard

April 01, 2003

Ohio and Pennsylvania have confirmed or reported cases of the neurologic form of equine herpesvirus type 1 (EHV-1, see Pennsylvania information on page 15). But the worst problems reported thus far have occurred in Ohio, where 12 horses died in... Read More

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EHV-1 in Penn., Possible Iowa Cases

April 01, 2003

While Ohio veterinarians are busy fighting what seems to be an especially aggressive strain of equine herpesvirus type 1 (EHV-1), two horses were euthanized due to illness from the virus at Penn National Race Course in Grantville, Penn., in an... Read More

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EHV-1 Confirmed in Three Horses at Kentucky Racetrack

March 19, 2003

Equine herpesvirus type 1 (EHV-1) has been confirmed as the cause of illness in three Thoroughbreds that were stabled in a training barn at Turfway Park in Florence, Ky. Tuesday’s announcement follows treatment of several EHV-1 outbreaks in Ohio... Read More

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Officials Explain Timing of Kentucky EHV-1 Announcement

March 19, 2003

Animal health officials today explained that the announcement about the equine herpesvirus type 1 (EHV-1) cases at Turfway Park in Florence, Ky., was not made sooner was because the virus wasn’t considered to be actively circulating in the... Read More

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Kentucky Racetrack Announces Herpesvirus Cases

March 18, 2003

Three horses stabled at Turfway Park have been diagnosed with neurologic equine herpesvirus type 1 (EHV-1). Verification of the virus was completed over the weekend at the northern Kentucky track by researchers at the Maxwell H. Gluck Equine... Read More

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Pennsylvania Tracks Prepare to Lift Shipping Ban

March 17, 2003

With no additional positive tests for Equine herpesvirus type 1 (EHV-1) since Feb. 26, Penn National Race Course was prepared to lift the quarantine of horses stabled in Barn U on March 19, according to track general manager Richard... Read More

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Classes Resume at the University of Findlay's English Riding Facility

March 10, 2003

Classes resumed today at the the University of Findlay's James L. Child Jr. Equestrian Complex, which has been under quarantine since the weekend of Jan. 18 because of an outbreak of equine herpes virus type 1 (EHV-1).

The University ha... Read More

Article

Herpesvirus Hits Hard

March 07, 2003

(Updated 3/07/03) Ohio and Pennsylvania have confirmed or reported cases of the neurologic form of equine herpesvirus type 1. But the worst problems reported thus far have occurred in Ohio, where 12 horses died in an outbreak at the... Read More

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Herpesvirus Positives Keep Racetrack Shipping Ban in Place

March 05, 2003

Two additional positive tests for equine herpesvirus type 1 (EHV-1) virus Feb. 26 were reported at Penn National Race Course. That prompted Philadelphia Park Racetrack to extend its ban on shipping into and out of the Grantville, Penn.,... Read More

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Ohio EHV-1 Outbreak; Strain Might Be Atypical

March 01, 2003

The worst is over in an equine herpesvirus type 1 (EHV-1) outbreak that thus far has caused the death of 12
horses, and scientists are still studying the virus to see if it is somehow different from the normal EHV-1 strain. The outbreak,... Read More

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Ohio State University Veterinary Hospital Management of Horses from University of Findlay EHV-1 Outbreak

February 28, 2003

Admission: Six horses were referred from the University of Findlay for emergency treatment. All horses had signs of neurological disease. One horse was dead on arrival on 19 January 03; this horse went directly to necropsy and was never... Read More

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Equine Herpesvirus 1: Pathophysiology and Commonly Asked Questions

February 28, 2003

The following information was posted on The Ohio State University Veterinary Teaching Hospital's web site Feb. 26. The author, Catherine W. Kohn, VMD, Dipl. ACVIM, is professor of equine medicine and surgery at OSU.... Read More

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Possible Equine Herpesvirus Type 1 Cases in Iowa

February 26, 2003

At least two Iowa horses have been euthanized after battling what officials believe might be the neurologic form of equine herpesvirus type 1 (EHV-1). According to Iowa State Veterinarian John Schiltz, DVM, officials know of only one premis... Read More

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Equine Herpes Virus Type 1 Cases at Pennsylvania Racetrack Keeping Officials Cautious

February 26, 2003

A restriction on horses shipping between Philadelphia Park Racetrack and Penn National Race Course due to three horses testing positive for equine herpesvirus type 1 (EHV-1) at Penn National might be lifted early next week, officials... Read More