Equine Herpesvirus (EHV)

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Neurologic Herpesvirus Confirmed in Maryland Outbreak

July 09, 2004

The neurologic form of equine herpesvirus type-1 (EHV-1) has been confirmed as the cause of disease in two Maryland horses infected during a deadly disease outbreak this spring. Twelve horses exhibited signs of neurologic... Read More

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Maryland Farm Quarantine Lifted

June 28, 2004

The quarantine of a Poolesville, Md., farm was lifted June 22 after five weeks passed with no detection of additional cases of neurologic disease. On May 18, veterinarians confirmed the last new case of what could be the neurologic form of equin... Read More

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Tests Inconclusive in Maryland Disease Outbreak

June 23, 2004

Investigators have been unable to make a conclusive diagnosis in the outbreak of equine neurologic disease on a single quarantined farm in Poolesville, Md. There is strong suspicion that equine herpesvirus type-1 (EHV-1) is to blame, but further... Read More

Article

Equine Disease--Fourth Quarter, 2003

June 01, 2004

From the April 2004 issue of Equine Disease Quarterly, funded by Lloyd's of London underwriters, brokers, and their Kentucky agents

The International Collating Centre in Newmarket, England, and other sources reported the... Read More

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Neurologic EHV-1 Case Confirmed at University of Wisconsin

April 01, 2004

The Hoofer Equestrian Center (HEC) at the University of Wisconsin, Madison (UWM), voluntarily quarantined its lower barn on Feb. 8 after two horses housed there showed neurologic signs of equine herpesvirus-1 (EHV-1). Both horses were later... Read More

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Neurologic Conditions, In-Depth

March 02, 2004

Assessing neurologic conditions might seem difficult, but with practice and attention to the subtle differences between different conditions' deficits, the process can become easier. Additionally, practitioners discussed vaccination and treatment opt... Read More

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Neurologic Disease Discussed

March 01, 2004

Morgan stressed that good management practices can reduce the risk factors that contribute to neurologic disease incidence. Keep feed sources clean and free of opossums and protect your hay from rodent infestation.... Read More

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Immune Responses to Equine Vaccines: Study

February 23, 2004

Lunn presented studies that he and six other scientists completed comparing immune responses between commonly used, commercially available vaccines.... Read More

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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

Article

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

Article

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

Article

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

Article

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

Article

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

Article

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

Article

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

Article

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