PRO/AH/EDR> Equine herpesvirus update: USA, UK (England)

LSU AgCenter faculty are participating in a multi-state project that looks at many facets of bovine respiratory disease, including novel early detection methods. State and track officials hope to avoid a similar fate because the economic impact on the Fair Grounds would be dramatic. Equine Herpes Virus is a common virus in equine populations worldwide. A bobbled start was only a minor setback for Karl Pergola’s K P Wildcat in the $75,000 Island Fashion Overnight Stakes at Sunland Park Feb. Many states have enhanced entry requirements for livestock originating from states where livestock are under quarantine for Vesicular Stomatitis. EHV-1 may be fatal in some severely infected horses. We apologize for the inconvenience.

Abiding Star is riding a five-race winning streak that includes a triumph in the James F. Signs associated with this disease include fever, decreased coordination, nasal discharge, urine dribbling, loss of tail tone, hind limb weakness, leaning against a wall or fence to maintain balance, lethargy, and the inability to rise. The latest figures from the Colorado state agriculture department show 22 suspected EHV-1 cases, and nine confirmed. Trainer Lupe Preciado wants to run Favorite Tale in the Breeders’ Cup Sprint, but for now, he must remain at Parx. Reports of vaccine reactions and vaccinerelated diseases are on the rise throughout the animal world. Biosecurity is a key component to limiting spread of any infectious disease and all individuals in contact with horses should remain mindful of appropriate procedures. The virus is species specific, so it does not affect humans, dogs, cats, etc.; however, alpacas and llamas can be affected.

Call organizers of the event to see if they have new health requirements or if it has been cancelled. The most common way for EHV-1 to spread is by direct horse-to-horse contact. The vaccine is primarily given to breeding stallions or mares that are going to be bred to an EVA carrier stallion. Adult horses might show signs of jaundice (yellowing of the mucous membranes or eyes) in the latter stages of the disease and can die of liver and/or kidney failure. Some infected animals may carry the disease without showing any clinical signs. Additional information from researchers and practitioners should improve our ability to recognize and treat ocular disease in camelids. Donations are welcome to support the Equine Internal Medicine Service at the UC Davis Large Animal Clinic.

Fact sheets about equine herpes virus type 1 as well as updates about the Veterinary Teaching Hospital’s operations are also available at www.ehrf.usask.ca and www.wcvm.com/collegenews. At this time we are not aware of any links to the Orange County incident. Horses from Dona Ana County, New Mexico will be restricted from traveling to Utah without special permission from the Utah State Veterinarian’s Office. Movement restrictions and precautionary measures have been applied and no horses have entered or left the premises for several weeks. Maybe some room in a pasture? The high point in horse cases was 2005 with approximately 500 affected equines. Owners should contact their private veterinarians to arrange for Equine Herpesvirus testing if a horse exhibits significant temperature elevations or neurologic signs.

To date, Sunland Park has lost 18 races, or two race days (January 23-24). That horse remains in isolation. The agency recommends that events should implement biosecurity practices to minimize potential exposure, consult a vet on an appropriate vaccination schedule and report any suspicious illness or neurological disease immediately. It can cause breathing or brain problems, as well as aborted or unhealthy pregnancies. Current state of affairs in the Alberta horse racing industry. “The fact that there have been no reported cases in Los Angeles or anywhere south of Bakersfield is of comfort,” said Show Manager Michael Roy Curtis. Officials with the National Cutting Horse Association say they’re closely monitoring the situation and that all NCHA-approved shows scheduled for this weekend have been canceled by the affiliates or show producers putting on the events.

By Sunday, a third horse in a different barn tested positive. You can now order a single vial and set up an automatic monthly refill, rather than purchasing an entire box. Both viruses do not cause human disease. An initial case of EHV-1 reported last week, and also being treated in isolation at OSU, only had the more common wild strain of the virus. But, it is still out there. The Kentucky Derby was loaded with closers, with Exaggerator showing the best among the late-runners, coming within 1.25 lengths when Nyquist hit the wire. 10/95- An update on Clostridial disease in the horse.

An additional barn was placed under quarantine when one horse there tested positive. The research today is helping recruit and train the researchers for tomorrow, giving extra impact from the Foundation’s funding. An outbreak of the potentially deadly neurological strain of EHV-1 has wreaked havoc on New Mexico’s Sunland Park Racetrack and Casino, forcing facility-wide quarantine and postponement of racing since January 21.

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