Equine Herpesvirus (EHV)

Article

Maryland EHV-1 Outbreaks Winding Down

March 02, 2006

Veterinarians suspect the recent deadly outbreaks of equine herpesvirus-1 (EHV-1) in Maryland have subsided. The Maryland Department of Agriculture (MDA) reported EHV-1 outbreaks at two Maryland tracks, a race training facility, and a private... Read More

Article

Equine Herpesvirus Test Pending on Philly Park Horse

March 02, 2006

Officials at Philadelphia Park are awaiting test results from a horse that was euthanatized Feb. 23 to determine whether it had equine herpesvirus-1 (EHV-1).

Kari Oakie, a 3-year-old Thoroughbred filly trained by Armand Correnti, fell... Read More

Article

Paralyzed With Fear

March 01, 2006

There have been numerous outbreaks of the deadly neurologic form of equine herpesvirus type 1 (EHV-1) recently... Read More

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Herpesvirus in Five States

March 01, 2006

T he neurologic form of equine herpesvirus type 1 (EHV-1) has been diagnosed in at least five different states in January and February (The Horse learned of a fifth state with herpes after the cover went to press). While many of the... Read More

Article

Q&A Neurologic Equine Herpesvirus

March 01, 2006

The University of Kentucky's Gluck Equine Research Center has the only Office International des Epizooties (OIE, or World Organization for Animal Health) reference laboratory for equine herpesvirus in the Western hemisphere. Samples from most of... Read More

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Wisconsin Barn Quarantined; One Neurologic EHV-1 Case Confirmed

February 24, 2006

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

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Georgia Neurologic Case Highlights Difficulty of Rule-Outs

February 23, 2006

A 24-year-old pleasure mare in Brunswick, Ga., was recently diagnosed with concurrent infections of equine protozoal myeloencephalitis (EPM) and equine herpesvirus type-1 (EHV-1), both of which can cause clinical signs of neurologic disease... Read More

Article

Suspected Neurologic Herpes Case in Wisconsin

February 20, 2006

The University of Wisconsin-Madison School of Veterinary Medicine has very strong evidence that a horse treated and euthanatized at the university had the neurologic form of equine herpesvirus type 1 (EHV-1), according to a Feb. 14 memo that... Read More

Article

AAEP Convention 2005: Infectious Neurologic Disease

February 17, 2006

Sometimes subtle and often dramatic, infectious neurologic disease cases are things veterinarians never want to see, although most would like to understand them better and more easily recognize them when they appear in clients' horses. From... Read More

Article

Horse at Fair Hill Training Center Positive for EHV-1

February 15, 2006

Maryland officials reported today (Feb. 15) that a horse which tested positive for equine herpesvirus type-1 (EHV-1) at Fair Hill Training Center in Cecil County, Md., last week, has recovered from its fever and has shown no signs of neurologic... Read More

Article

Kentucky Equine Restrictions - EHV Affected Areas

February 10, 2006

While we are confident that the situation at both Turfway Park and the Western Kentucky Training Center have been satisfactorily resolved; we remain concerned over the apparent spread of equine herpes virus from Pimlico to other racetracks,... Read More

Article

New Product Reduces Herpesvirus Clinical Signs

February 08, 2006

Pfizer Animal Health on Feb. 8 announced the release of Zylexis, which according to the company's research prepares the horse's immune system to function more efficiently against equine herpesvirus (EHV) types-1 and -4 pathogens. The... Read More

Article

Final Kentucky Racetrack Released From Quarantine

February 08, 2006

Equine herpesvirus quarantines at two Kentucky Thoroughbred facilities were released, ending the recent outbreak of the neurologic disease. Robert Stout, DVM, Kentucky state veterinarian, lifted the quarantine at Turfway Park in Florence on Feb.... Read More

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Michigan Veterinarian Describes Neurologic Herpes Case

February 08, 2006

A 3-year-old Standardbred mare suffering from signs of neurologic disease tested positive for equine herpesvirus type-1 (EHV-1) and was euthanatized at the Allegan County Fairgrounds in Allegan, Mich., on Jan. 18. The horse had been shipped in... Read More

Article

Pimlico Quarantine Lifted

February 08, 2006

The Maryland Jockey Club (MJC) lifted its self-imposed quarantine on Pimlico Race Course this morning (Feb. 8), allowing horses from the Baltimore track to compete at Laurel Park in Laurel, Md., for the first time since Jan. 21. Twelve... Read More

Article

Second Neurologic Horse Euthanatized on Maryland Farm

February 08, 2006

A competitive event horse that began showing neurologic signs of equine herpesvirus type 1 (EHV-1) last Thursday (Feb. 2) was euthanatized on Sunday (Feb. 5) after a rapid decline in health. The mare is the second horse to be euthanatized on the... Read More

Article

Maryland Officials Distribute Biosecurity Information for Stable Operators

February 08, 2006

The Maryland Department of Agriculture released the following tips on avoiding transmission of illness.

Keep your stable disease-free:

  • Limit traffic of incoming people who could have been exposed to germs elsewhere.... Read More

Article

Maryland Trainers Holding Their Breath

February 07, 2006

For more than a week, Maryland Jockey Club (MJC) chief operating officer Lou Raffetto said he could "see the light at the end of the tunnel" regarding the ongoing battle with equine herpesvirus.

There was some light Feb. 3, when Laurel... Read More

Article

Can Immunomodulators Help Herpesvirus Victims?

February 01, 2006

Human and animal scientists have been researching ways to stimulate the immune system in order to prevent or mitigate disease, especially just prior to or during stressful events. Options include vaccination, antimicrobial therapy, and... Read More

Article

Five Horses Test Positive for Equine Herpesvirus

February 01, 2006

As 2005 neared its end, equine herpesvirus type-1 (EHV-1) killed two horses that were stabled at Turfway Park, a Northern Kentucky racetrack. The victims--one Thoroughbred in training and a lead pony--were euthanatized after they developed the... Read More

Article

Veterinarian Suggests Owners Implement EHV-1 Preventive Measures

February 01, 2006

In light of the current equine herpesvirus type-1 neurologic outbreaks, Rob Holland, DVM, senior veterinarian at Pfizer Animal Health, has suggested that owners take steps to prevent EHV-1 infection in their horses.

"Other than... Read More

Article

Cornell Researcher Warns About Herpesvirus

February 01, 2006

Klaus Osterrieder, DVM, DVM Habilitation (German equivalent to a PhD), an associate professor of virology at Cornell University in Ithaca, N.Y., studies equine herpesvirus type-1 (EHV-1). He shared his views with The Horse on recent... Read More

Article

Second Laurel Park Horse Tests Positive For Equine Herpes

January 31, 2006

The Maryland Department of Agriculture confirmed today that a second horse, Hey Ralphy, a filly trained by Rodney Jenkins at Laurel Park, was infected with equine herpesvirus type-1 (EHV-1). The 3-year-old was euthanatized on Jan. 26 with a... Read More

Article

Pimlico Considers Lifting Quarantine Feb. 4; Stakes Could Be Rescheduled

January 30, 2006

Maryland Jockey Club (MJC) officials are hopeful they will be able to lift the equine herpesvirus quarantine at Pimlico Race Course in Baltimore on Feb. 4, MJC chief operating officer Lou Raffetto said at a news conference at Laurel Park on Jan.... Read More

Article

Herpesvirus Detected at Laurel Park

January 25, 2006

Equine herpesvirus has been confirmed in a horse stabled at Laurel Park in Laurel, Md., says an Associated Press story on www.bloodhorse.com (Read More