Recent News for Diseases and Conditions

Article

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

Article

The Equine Eye: Ocular Emergencies (Book Excerpt)

March 01, 2006

Well before an ocular emergency occurs, you should familiarize yourself with the easily visible outer structures of a horse's eye. Observe the eye with the aid of a penlight or other light source. Evidence of pain is a clear symptom of most ocular... Read More

Article

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

Article

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

Article

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: Exercise Induced Pulmonary Hemorrhage

February 17, 2006

Exercise-induced pulmonary hemorrhage (EIPH), or bleeding in the lungs after exercise, costs the United States horse racing industry a great deal--estimated at up to $260 million per year by Kenneth W. Hinchcliff, BVSc, MS, PhD, Dipl. ACVIM, of... Read More

Article

AAEP Convention 2005: Inflammatory Airway Disease

February 17, 2006

A racehorse running at top speed breathes about 120 times per minute, moving about 12-15 liters of air per breath or 1,400-1,800 liters per minute. With this amount of airflow, it's not hard to imagine that any amount of airway inflammation can... Read More

Article

AAEP Convention 2005: Upper Airway Obstructive Disease

February 17, 2006

"Before high-speed treadmill (HSTM) endoscopy, we did not recognize the complexity of maintaining a open airway under enormous pressure swings during inspiration and expiration (breathing in and out)," said Eric Parente, DVM, associate professor... Read More

Article

AAEP Convention 2005: Chronic Salbutamol Treatment for Inflammatory Airway Disease

February 17, 2006

"Anywhere between 25-92% of stabled horses have some form of airway inflammation," said Melissa R. Mazan, DVM, of Tufts University's Cummings School of Veterinary Medicine, at the 2005 American Association of Equine Practitioners Convention in... 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

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

Article

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

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

The Respiratory System (Book Excerpt)

February 08, 2006

The respiratory system's main goal is to transfer oxygen from the air we breathe to the red blood cells where the oxygen will be transported throughout the body and be available for all organs and tissues. In addition, carbon dioxide, a waste produc... 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

Article

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

Dealing with Dummy Foals

February 01, 2006

At first, everything seems fine: Your foal was born without incident and started nursing as he should. But two days later, the baby quit suckling and began acting strangely--wandering around and pressing his head against the stall wall. Your... Read More