Recent News for Infectious Diseases

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Hold Order Lifted on Kent County Farm

March 06, 2006

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... Read More

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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

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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

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Spring Fevers

March 01, 2006

Respiratory problems are frequent health issues for horses, and are often associated with microbial infections. For horse owners preparing for spring competitions or the birth of foals, a review of respiratory diseases is timely. Owners need to... Read More

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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

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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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First 2006 Florida EEE Cases Emerge

March 01, 2006

By March 1, the Eastern equine encephalitis (EEE) season in Florida was already underway, and Florida veterinarians remind horse owners to make sure their horses are vaccinated against the disease, which can have a mortality rate of up to... 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

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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

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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

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AAEP Convention 2005: WNV DNA Vaccine Effective in Young Horses

February 17, 2006

Scientists recently showed that the Fort Dodge Animal Health West Nile virus (WNV) DNA vaccine, which is licensed but not yet commercially available, should protect foals from the virus regardless of residual antibodies received at birth from... Read More

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AAEP Convention 2005: Early Diagnosis of EPM with Biomarkers

February 16, 2006

A researcher has found a reliable way to diagnose equine protozoal myeloencephalitis (EPM) in the acutely affected horse by examining genetic markers in its blood. This technique could potentially be applied to detect evidence of other infectiou... Read More

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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

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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

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

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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

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

EPM Check-Up

February 01, 2006

Although progress has been made studying equine protozoal myeloencephalitis (EPM) in the last 10 years, some aspects of the disease remain elusive. One researcher, half-jokingly, notes that EPM is considered the most diagnosed neurologic disorde... Read More

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AAEP Convention 2005: Vaccine Efficacy and Controversies

February 01, 2006

"There are a huge number of (vaccine) choices out there and it's hard sometimes to see our way through the forest," said Julia Wilson, DVM, Dipl. ACVIM, associate professor in Veterinary Population Medicine at the University of Minnesota. "What... Read More