Equine Herpesvirus (EHV)

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Hold Order Lifted at Laurel Park

(edited press release)


The Maryland Department of Agriculture (MDA) released its hold order on Laurel Park’s Barn 9 on Friday, March 3, which means 34 horses that tested negative for equine herpesvirus-1 (EHV-1) at the Laurel,

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Hold Order Lifted on Kent County Farm

Seventeen horses on a Kent County, Md., farm tested negative for equine herpesvirus-1 (EHV-1) on March 3, resulting in the March 4 removal of a Maryland Department of Agriculture (MDA) hold order that had prevented equine transport to and from

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Equine Herpesvirus Test Pending on Philly Park Horse

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

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Maryland EHV-1 Outbreaks Winding Down

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

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Paralyzed With Fear

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

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Herpesvirus in Five States

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

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Georgia Neurologic Case Highlights Difficulty of Rule-Outs

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

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Suspected Neurologic Herpes Case in Wisconsin

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

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AAEP Convention 2005: Infectious Neurologic Disease

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

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Horse at Fair Hill Training Center Positive for EHV-1

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

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Kentucky Equine Restrictions – EHV Affected Areas

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,

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Second Neurologic Horse Euthanatized on Maryland Farm

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

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New Product Reduces Herpesvirus Clinical Signs

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

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Final Kentucky Racetrack Released From Quarantine

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.

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