Videos: EHV Outbreak in West Means America's Pleasure and Show Horses Stay Home and Horse Professionals Get Re-Scheduled

Surely you're heard by now that a strange outbreak of Equine Herpes Virus Type 1 has sent horses in the western United States and Canada into near-lockdown situations. Horse shows, trail rides and rodeos are cancelled, even though the only horses truly at risk are a group of cutting and western performance horses who were on the grounds of a show in Utah in the first week in May. But how many horses did they come in contact with before the word reached them of the outbreak?

One unfortunate side effect of this outbreak is that many trainers and owners are cancelling appointments with veterinarians, farriers, massage therapists, horse haulers, tooth floaters--anyone and everyone who might touch their horses. The horse professionals may have time to mow their lawns, or they may head to the racetracks looking for a week or two of work until this blows over.

If you're one of the people affected by this, take heart. This has happened before. It will happen again. And it has happened on a much larger scale than this (probably) will ever be. Just ask the horse professionals in Great Britain who survived the foot and mouth disease shutdown of the entire countryside, or the Australians who lost months of work during the Equine Influenza quarantines there.

What did people share during those times, when and if they were allowed into a stable to do some work? People wore latex gloves while working, and changed them between horses. Some wore baseball caps, changed them often, and washed them every night. They definitely washed their hair daily and kept it short. Farriers figured out that their "sweet spot" was the middle of the back and shoulders, and that a horse's muzzle would touch there, or the back of the head, especially when pulling the foreleg forward on a hoofstand.

People learned that an experienced horse holder was worth his or her weight in gold and could keep a horse's muzzle and mouth off the farrier. The holder should wear latex gloves and change them between horses.

As far as equipment is concerned, there are arguments raging whether sterilizing farrier tools is futile or not--is it even possible to sterilize a rasp? The most important thing would probably be to never use the same chain lead on two horses as a lip or nose chain; each horse should have its own. Some farriers like to carry their own, but this might not be the time to pull one out from behind the seat of your truck.

A sterile farrier's apron would be quite a trick. A farrier might impress clients right now by showing up with a shiny clean new apron, even if you go back to your old one later on.

As always, we'd love to hear about your experiences and see your pictures. Let's make the best of this and learn something!

Here are a couple of videos that I thought were interesting and helpful. Dr Hooten mentions biosecurity for farriers and veterinarians in the first video.

Linda Parelli and Veterinarian Dwight Hooten Discuss EHV

I'm including this video because Dr. Hooten is a long-time friend of Hoofcare and Lameness and because he doesn't seem concerned about farriers being a big biosecurity risk during a virus outbreak.

Arizona: Al Dunning's Experience

Arizona trainer Al Dunning had his life turned upside down when he returned from the cutting show in Utah last week. This news interview on an Arizona television station gives some insight into what the virus can cost.

© Fran Jurga and Hoofcare Publishing; Fran Jurga's Hoof Blog is a between-issues news service for subscribers to Hoofcare and Lameness Journal. Please, no use without permission. You only need to ask. This blog may be read online at the blog page, checked via RSS feed, or received via a digest-type email (requires signup in box at top right of blog page). To subscribe to Hoofcare and Lameness (the journal), please visit the main site, www.hoofcare.com, where many educational products and media related to equine lameness and hoof science can be found. Questions or problems with this blog? Send email to blog@hoofcare.com.  
 

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Disclosure of Material Connection: I have not received any direct compensation for writing this post. I have no material connection to the brands, products, or services that I have mentioned, other than Hoofcare Publishing. I am disclosing this in accordance with the Federal Trade Commission’s 16 CFR, Part 255: Guides Concerning the Use of Endorsements and Testimonials in Advertising.

Cornell Vet School Equine Herpes Virus Quarantine: Hospital and Barns Closed; Shoeing School, Farrier Shop Open

The following information is provided as a public service for horse owners and horsecare professionals.

The world-famous horseshoeing school and farrier shop at Cornell vet school is remaining open during the quarantine, according to resident farrier Steve Kraus. The shoes in the display case are part of the university's extensive collection of shoes made by Professor Henry Asmus, founder of Cornell's shoeing school in 1913; it was the first in the United States. (Flickr.com photo by Michael King)

The New York State Department of Agriculture and Markets’ animal health officials and veterinarians from the Equine Hospital at Cornell University are investigating two confirmed cases of Equine Herpesvirus 1 (EHV-1) in New York State. Both horses listed as cases of EHV-1 were inpatients of the Equine Hospital at Cornell University, and could have potentially exposed 69 other horses.

EHV-1 is a common viral infection of horses that is highly contagious and exhibits an array of symptoms, ranging from no clinical signs to neurological disorders.

New York State Veterinarian Dr. David Smith said, “While a common virus in horses, we are taking this situation very seriously given the large number of horses that have potentially been exposed to a highly communicable and sometimes fatal disease. To date, no other horses have showed signs, nor tested positive for the virus. However, this serves as an excellent reminder to horse owners that they should always be cautious of introducing new horses with an unknown disease status.”

“We recognize the seriousness of the Equine Herpesvirus Type 1 and other infectious diseases,” said Dr. Alfonso Torres, Associate Dean of Public Policy at the New York State College of Veterinary Medicine at Cornell University. “Thanks to our surveillance systems and access to highly sensitive testing at the New York State Veterinary Diagnostic Laboratory, we were able to rapidly identify the infectious agent and implement appropriate actions immediately to prevent the spread of the infection.”

A quiet barn aisle at Cornell University College of Veterinary Medicine Equine Hospital, photo by Ernest Fox courtesy of Flickr.com

This incident involves two confirmed cases of EHV-1 in New York State. One was a one-day old foal that was admitted to the Equine Hospital on March 18. The foal died two days later of pneumonia, and tests revealed the presence of EHV-1 on March 25.

During the same time, a gelding was being treated at the hospital for a spinal injury. It was discharged on March 22, but became severely ill and showed neurological symptoms after arriving back at its home farm. This horse tested positive for EHV-1 on March 30. The gelding is now recovering.

In response to the two confirmed cases, both the gelding’s farm and the Equine Hospital were quarantined immediately, restricting movement and access to animals at both facilities. Horses at both facilities are being monitored closely and having their temperatures taken twice daily. So far, no animals have exhibited a fever attributable to EHV-1, which would be an early warning of the virus.

At the hospital, polymerase chain reaction (PCR) tests have also been completed for four consecutive days on all current patients. The PCR samples from all animals in the hospital are negative, indicating that no virus shedding is occurring.

The Equine Hospital is located in Cornell's extensive new complex of animal clinics on the edge of the Ithaca, New York campus. Photo by Ernest Fox, courtesy of flickr.com

As part of this on-going investigation, the Department of Agriculture and Markets is working to determine the source of the infection, as well as to identify and isolate potentially exposed horses. In doing so, Cornell has been contacting all referring veterinarians and the owners of 69 other equine patients that may have been exposed while at the Equine Hospital. The Department is also communicating with private veterinarians to provide information related to this situation, and is prepared to follow up on possible quarantines of trace-out barns of the 69 potentially exposed horses, if necessary.

At this time, neither the Department nor Cornell know of any other animals that have showed signs or tested positive for EHV-1 in association with this incident.

Nearly all horses in their lifetime will be exposed to EHV-1 at some point, and therefore it is difficult to detect as it takes on a wide range of manifestations, from a complete lack of clinical symptoms, to pneumonia, to abortion in mares, to full-blown fatal neurologic cases. The virus does not persist in the environment and is neutralized by hand soap, alcohol-based hand sanitizers, and sunlight. Transmission of the virus is mostly via direct contact with infected materials.

EHV-1 does not affect humans or dogs, cats, cattle, sheep, goats, pigs or birds; however, alpacas and llamas can be affected.

If you are the owner or caretaker of a horse that was or has been at the Equine Hospital at Cornell on or after March 18, 2011 or that may have come in contact with a potentially exposed patient, the following guidelines are recommended:

• Isolate your animal, if possible. It is always recommended that horses returning from veterinary hospitals be isolated for three weeks when possible.
• Check your horse’s temperature twice a day for ten days. If the temperature is 102 degrees Fahrenheit or greater, contact your veterinarian immediately.
• If you care to test your horse, consult your veterinarian. At this time, the preferred test is PCR analysis performed on nasal swab specimens.

Since March 30, 2011, the Equine Hospital at Cornell University has been quarantined. No movement of animals between the equine barns and other Cornell facilities is permitted at this time, and the hospital is only accepting emergency cases.

Out of an abundance of caution, the quarantine at the hospital will remain in effect through April 11.

For more information on EHV-1, visit the American Association of Equine Practitioners website or check USDA APHIS brochure on the virus.

 © Fran Jurga and Hoofcare Publishing; Fran Jurga's Hoof Blog is a between-issues news service for subscribers to Hoofcare and Lameness Journal. Please, no use without permission. You only need to ask. This blog may be read online at the blog page, checked via RSS feed, or received via a digest-type email (requires signup in box at top right of blog page). To subscribe to Hoofcare and Lameness (the journal), please visit the main site, www.hoofcare.com, where many educational products and media related to equine lameness and hoof science can be found. Questions or problems with this blog? Send email to blog@hoofcare.com.
 

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Disclosure of Material Connection: I have not received any direct compensation for writing this post. I have no material connection to the brands, products, or services that I have mentioned, other than Hoofcare Publishing. I am disclosing this in accordance with the Federal Trade Commission’s 16 CFR, Part 255: Guides Concerning the Use of Endorsements and Testimonials in Advertising.