Rhinovirus/EHV-1 outbreak - The Horse Forum
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post #1 of 99 Old 05-17-2011, 09:17 PM Thread Starter
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Rhinovirus/EHV-1 outbreak


Many news articles out there, as well as some great discussion on various other boards.

Please take precautions when visiting your or others' horses - make sure to disinfect if you are travelling to other barns. Try to not travel with your horse if it's at all possible. If your horse is showing symptoms such as fever or unsteadiness (sources say not to fret under 102*F) contact your vet.
Viruses don't live long outside of a host, but can still stay on surfaces (i.e. your hands, coat, boots, etc) for a period of time. It can be spread from contact or cough.
Lots of shows cancelled, and barns undergoing quarantine (voluntarily or not).

<H2 style="FONT-FAMILY: Verdana, Arial, sans-serif; FONT-SIZE: 15px; -webkit-border-horizontal-spacing: 1px; -webkit-border-vertical-spacing: 1px" itxtHarvested="0" itxtNodeId="280">Equine Herpes Virus


May 13, 2011
A recent disease outbreak of Equine Herpes Myeloencephalopathy (EHV-1) has been traced to horses who attended the National Cutting Horse Associations’ Western National Championships in Odgen, Utah on April 30 – May 8, 2011. California horses who participated in this event may have been exposed to this EHV-1 virus.
The California Department of Food and Agriculture encourages owners of horses who participated in the Odgen, Utah event to monitor their horses for clinical signs of disease. A rectal temperature in excess of 102F commonly precedes other clinical signs. Therefore, we are urging owners to take temperatures on each individual horse(s) twice a day. If a temperature above 102F is detected contact your private practitioner immediately. Laboratory submission of nasal swabs and blood samples collected from the exposed horse can be utilized for virus detection and isolation.
The EHV-1 organism spreads quickly from horse to horse and the neurologic form of the virus can reach high morbidity and mortality rates. The incubation period of EHV-1 is typically 2-10 days. In horses infected with the neurologic strain of EHV-1, clinical signs may include: nasal discharge, incoordination, hind end weakness, recumbency, lethargy, urine dribbling and diminished tail tone. Prognosis depends on severity of signs and the period of recumbency. There is no specific treatment for EHV-1. Treatment may include intravenous fluids, anti-inflammatory drugs and other appropriate supportive treatment. Currently, there is no equine vaccine that has a label claim for protection against the neurological strain of the virus.
Horse-to-horse contact, aerosol transmission, and contaminated hands, equipment, tack, and feed all play a role in disease spread. However, horses with severe clinical signs of neurological EHV-1 illness are thought to have large viral loads in their blood and nasal secretions and therefore, present the greatest danger for spreading the disease. Immediate separation and isolation of identified suspect cases and implementation of appropriate biosecurity measures are key elements for disease control.

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Last edited by JustDressageIt; 05-17-2011 at 09:20 PM.
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post #2 of 99 Old 05-17-2011, 09:24 PM
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our barn is under going a voluntary quarentine right now as we have a horse who was exposed to known carriers of the EHV-1 virus. its very scarey. please everyone be smart and be safe.
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post #3 of 99 Old 05-17-2011, 09:25 PM
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Thanks! I'm really surprised this is the only thread (Is it not?) I've been looking all day and figured I MUST just not be seeing one.

This is a big deal. Especially for those nearby (I'm in Central California).

Note that there is no vaccine for this strain, guys and gals.

"All I pay my psychiatrist is the cost of feed and hay, and she'll listen to me allll day."
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post #4 of 99 Old 05-17-2011, 09:32 PM Thread Starter
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I too was surprised that there wasn't a thread already. Anyways, there is one now.
Please, anyone who can, keep us all updated.

Everyone be safe. If your horse is showing any sort of symptom, contact a vet and put the horse under solitary quarantine.

The lovely images above provided by CVLC Photography cvlphotography.com
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post #5 of 99 Old 05-17-2011, 09:33 PM Thread Starter
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Maybe a mod can sticky this until it's all over and done with? (Hopefully sooner rather than later)

The lovely images above provided by CVLC Photography cvlphotography.com
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post #6 of 99 Old 05-18-2011, 12:40 AM
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Our barn owner sent an email about this earlier today. So so scary. Stay safe everyone :(

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post #7 of 99 Old 05-18-2011, 12:50 AM
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That is just horrible. As far as I know, there have been no reported cases in my area. My thoughts are with everyone who has horses in that area or horses who have been exposed.

Always remember that feeling of looking at a big, open country over the ears of a good horse, seeing a new trail unwind ahead of you, and that ever-spectacular view from the top of the ridge!!! Follow my training blog: http://robertsontraining.blogspot.com/
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post #8 of 99 Old 05-18-2011, 12:56 AM
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Citrus started a thread about this 2 days ago. Our arena sent everbody a warning and canceled practices and our barn is now on lock down.

So in lies the madness, the pursuit of the impossible in the face of the complete assurance that you will fail, and yet still you chase.
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post #9 of 99 Old 05-18-2011, 01:02 AM
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that's terrible. there was a horse that was euthanized a couple of blocks down from my barn because, he/she had it so bad. poor horse. as of right now, no known cases here in NY.
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post #10 of 99 Old 05-18-2011, 01:05 AM
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I have heard there are 8 positive cases in WA as of today. Also, WSU is only taking in emergency cases (there was one horse tested positive there for sure. They are waiting on results for others).
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