Equine Herpesvirus (EHV)

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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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

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Restrictions Lifted on Most Lead Ponies, Outrider Horses at Turfway Park

January 24, 2006

All but one of the workhorses quarantined at Turfway Park have been cleared to return to the track on Tuesday (Jan. 24) after testing negative for equine herpesvirus.

Robert Stout, DVM, Kentucky state veterinarian, rescinded the... Read More

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Herpesvirus Causes Maryland Jockey Club Quarantine of Pimlico Race Course

January 23, 2006

The Maryland Jockey Club (MJC) placed a quarantine on Pimlico Race Course effective after racing ended on Jan. 21 until further notice because of the neurologic equine herpesvirus type-1 (EHV-1) situation at the Baltimore track.

Since... Read More

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Trainers Worry Pimlico Quarantine is Too Late

January 23, 2006

The Maryland Jockey Club (MJC) has stepped up its fight against the equine herpesvirus type-1 (EHV-1) with a quarantine of the entire Pimlico Race Course stable area, but some trainers worry the move may have come too late.

"I don't know... Read More

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EHV Spreads in Northeast; Penn National Horse Tests Positive

January 21, 2006

In the wake of a horse being diagnosed with equine herpesvirus type-1 (EHV-1) at Penn National Race Course on Friday (Jan. 20), Philadelphia Park has banned shippers from that oval, effective immediately. Shippers from Maryland, including the... Read More

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Turfway Park's Barn 26 Released from Quarantine

January 20, 2006

The 48 horses stabled in Barn 26 at Turfway Park in Boone County, Ky., were released Jan. 19 from quarantine. Horses in Barns 26 and 27 were quarantined following a Dec. 21, 2005, outbreak of equine herpesvirus type-1 (EHV-1) at the track,... Read More

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Third Pimlico Barn Isolated Due to Suspect Herpes Case

January 19, 2006

The Maryland Department of Agriculture (MDA) placed an "Investigational Animal Hold Order" on Barn A at Pimlico Race Course today (Jan. 19) after a horse showed signs of equine herpesvirus type-1 (EHV-1) this morning. Barns 5 and 6 at the... Read More

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Second Horse Euthanatized at Pimlico Suspected of Having EHV-1

January 14, 2006

Officials at Pimlico Racecourse announced Friday (Jan. 13) that a second horse euthanatized at the Maryland track is suspected to have had equine herpesvirus-1. As a result, the Maryland Department of Agriculture has placed a "hold order" on Bar... Read More

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Cornell Researcher Answers More Questions on Herpesvirus

January 12, 2006

The Horse continues to discuss equine herpesvirus type-1 (EHV-1) with scientists who have been researching the disease. Klaus Osterrieder, DVM, DVM Habilitation (German equivalent to a PhD), is associate professor of virology in th... Read More

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Other States Act to Combat Spread of Virus

January 11, 2006

As surrounding states took steps to protect their racetracks from Maryland horses that could be carriers of the equine herpesvirus, Maryland Jockey Club racing secretary Georganne Hale was looking for positives anywhere she could find... Read More

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Neurologic Equine Herpesvirus Q&A

January 11, 2006

It isn't just our imagination--we have been hearing about more neurologic equine herpesvirus outbreaks in the past several years than we were aware of previously. The current outbreaks in Kentucky and Maryland bring the disease back to the... Read More