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EHV-1 How concerned should I be?

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  • Ehv-1 april 2014
  • Equine rhino virus in MN

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    04-01-2014, 12:02 PM
  #11
Trained
It can, I vaccinate for Rhino twice a year every year.
I know it lessens the severity for EHV4 and Rhino, etc.. but I don't know if it's the Neuro form of EHV1 if it will lessen.

JMO though it takes a few years of regularly vaccinating to have an effect. My big horse who has been on FEI protocol vaccinations for 3 years was beside the 2 sickest horses in the barn when the flu went through and never even had a runny nose. The kiddo who had been vaccinated for flu/rhino once, was off for 6 weeks.

But I do highly highly recommend FEI protocol vaccination for any competition horse. When I started it seemed excessive but now that I've done it on both horses, I'm very glad I have.
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    04-01-2014, 02:32 PM
  #12
Weanling
Quote:
Originally Posted by ~*~anebel~*~    
It can, I vaccinate for Rhino twice a year every year.
I know it lessens the severity for EHV4 and Rhino, etc.. but I don't know if it's the Neuro form of EHV1 if it will lessen.

JMO though it takes a few years of regularly vaccinating to have an effect. My big horse who has been on FEI protocol vaccinations for 3 years was beside the 2 sickest horses in the barn when the flu went through and never even had a runny nose. The kiddo who had been vaccinated for flu/rhino once, was off for 6 weeks.

But I do highly highly recommend FEI protocol vaccination for any competition horse. When I started it seemed excessive but now that I've done it on both horses, I'm very glad I have.
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I'm in Iowa, so here's the skinny. I'd highly recommend following Abraham's Equine Clinic, Anoka Equine Clinic, and Stillwater Equine Clinic on Facebook if you don't already. They have all the current info.

The current EHV-1 vaccines MAY help LESSEN the severity of the symptoms, but this new strain is a "wild/mutant" strain, and although it's "non-neurotropic," it's shown to cause neurological symptoms (ataxia in back legs, unable to control urination, etc.). No vaccine can prevent this strain from making your horse sick, which is why it's so darn scary right now. So no, even having the current EHV-1 vaccine will not help. Some of the horses that have contracted this were up-to-date on vaccinations.

We are all on high alert right now. We live 2 hours away from the nearest case (Marion, IA), but this virus can be spread so very, very easily. It can spread on hands, clothes, boots, equipment, etc. We're suspicious of all farriers, vets, chiropractors, instructors, and visitors. My barn manager/owner has 2 open stalls, but (thankfully!) refuses to move any horses in or out at this time. Unfortunately the Iowa Horse Fair is this weekend, and they chose not to cancel. I had the amazing opportunity to ride with Julie Goodnight in a free clinic, and showcase my Friesian mare as an ambassador for her breed, but I backed out. One hour of the spotlight just isn't worth my horse's life!
Some vets are advising no travel for 2 weeks, but scientific papers on EHV-1 ALL say 4-6 weeks, with 4 weeks being the bare minimum.
     
    04-01-2014, 02:35 PM
  #13
Weanling
One lady at my barn suggested that this virus is "testing its virulence". If you take a look at news articles, you'll see that this wild strain has popped up in random places in the US for the last 3 years. It pops up, dies down after a few months, then pops up again after 4-6 months. I am concerned that she may be right. This could get widespread very quickly. All it takes is one horse show, one horse auction, or one event with horsey people spreading germs.
     
    04-01-2014, 05:45 PM
  #14
Trained
I'm in MN in the area the virus has concentrated. People are finally starting to take this seriously, BUT there was a big QH/App sale this past weekend at Simon's. Supposedly last year horses from that sale went all over the US. I don't know what went on this year, but there were people at the sale that had no idea about EHV-1. There was another sale as well that I know of, but I believe it was more local type one. Still bad, but not as bad I guess.

Anyways, like I said people are just now kind of taking this seriously and cancelling events, but a lot of people are still selling/buying/moving horses. My horses are on lockdown.

This was yesterday:
3/31/2014

Over the weekend our colleagues on the west side of the twin cities reported another neurological case, EHV -1 tests are pending. This horse is a barrel horse or in contact with barrel horses and is located in Wright County MN.

The MN board of animal health has said that they will post a map of the cases on their website.

We continue to monitor this situation daily.

Case State County Date
Case 1 MN Chisago Euthanized EHV-1 positive 3/8/2014
Case 2 MN Chisago Recovering EHV-1 positive 3/8/2014
Case 3 MN Dakota Euthanized EHV-1 positive 3/18/2014
Case 4 WI Polk Recovering EHV-1 positive3/20/2014
Case 5 MN Hennepin Recovering EHV-1 positive 3/21/2014
Case 6 WI Burnett Euthanized tests pending 3/20/2014
Case 7 MN Freeborn Recovering Test positive 3/26/2014
Case 8 MN Wright Test positive 3/26/2014
Case 9 Iowa and MN Freeborn and Hennepin Positive 3/26/2014
Case 10 MN Wright county neuro symptoms pending3/29/2014

Per: https://www.facebook.com/pages/Still...95001550527048


There are supposedly several more cases being test as well.
     
    04-01-2014, 06:27 PM
  #15
Trained
Quote:
Originally Posted by TurkishVan    
I'm in Iowa, so here's the skinny. I'd highly recommend following Abraham's Equine Clinic, Anoka Equine Clinic, and Stillwater Equine Clinic on Facebook if you don't already. They have all the current info.

The current EHV-1 vaccines MAY help LESSEN the severity of the symptoms, but this new strain is a "wild/mutant" strain, and although it's "non-neurotropic," it's shown to cause neurological symptoms (ataxia in back legs, unable to control urination, etc.). No vaccine can prevent this strain from making your horse sick, which is why it's so darn scary right now. So no, even having the current EHV-1 vaccine will not help. Some of the horses that have contracted this were up-to-date on vaccinations.

We are all on high alert right now. We live 2 hours away from the nearest case (Marion, IA), but this virus can be spread so very, very easily. It can spread on hands, clothes, boots, equipment, etc. We're suspicious of all farriers, vets, chiropractors, instructors, and visitors. My barn manager/owner has 2 open stalls, but (thankfully!) refuses to move any horses in or out at this time. Unfortunately the Iowa Horse Fair is this weekend, and they chose not to cancel. I had the amazing opportunity to ride with Julie Goodnight in a free clinic, and showcase my Friesian mare as an ambassador for her breed, but I backed out. One hour of the spotlight just isn't worth my horse's life!
Some vets are advising no travel for 2 weeks, but scientific papers on EHV-1 ALL say 4-6 weeks, with 4 weeks being the bare minimum.
This is what I was afraid of.

Uuugghhh I am really hoping this dies down before our show season up here starts. Luckily we still have snow that's keeping most folks home...

And yeah, 4-6 weeks minimum. I wouldn't take my horse anywhere until the last case was 6 weeks from diagnosis. That's what we did last time (~4 years ago)
     
    04-01-2014, 06:42 PM
  #16
Trained
Here are the vet clinics to follow:

https://www.facebook.com/pages/Still...7048?ref=br_tf

https://www.facebook.com/anokaequine

https://www.facebook.com/pages/Abrah...27420867296093
     
    04-03-2014, 02:25 PM
  #17
Trained
The latest update:

EHV-1 UPDATE 4/3/14:

A horse in Wright County developed neurologic signs on 3/29 and was tested. A positive diagnosis was received this morning. All horses on this farm were tested to screen them for EHV-1. Of those tested additional horses came back positive for shedding the virus but they are not showing neurologic signs at this time. Those horses that are screened but not showing neurologic signs will be retested again in 3 weeks to determine shedding status.

This facility is taking this very seriously; they are in tight lock-down and are dressing in and dressing out when entering the barn etc. They have a very good quarantine protocol in place.

To help with the understanding of “shedding” and what that means: EHV-1 non-neurologic form transfers via the respiratory system/breathing basically via air in closer proximity and on humans meaning on boots, barn equipment, clothing, etc. Of the horses that are positive shedders 25% will be neurologic and 75% will not, they will just shed. If one of those horses sheds to a new horse the same thing holds…25% of the new horses will be neurologic and 75% will not.

We start the 2 week no travel again today, which is April 3rd. Meaning if there are NO more positive cases we are looking at April 17th. The only way to eliminate this virus is for everyone to keep their horses at home. Do not haul to and from trainers, lessons, shows, sales. Do not bring home new horses. Do not go to a horse event or barn without changing all your clothes, disinfecting your boots/hands etc.
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    04-03-2014, 02:57 PM
  #18
Weanling
Quote:
Originally Posted by MN Tigerstripes    
The latest update:

To help with the understanding of “shedding” and what that means: EHV-1 non-neurologic form transfers via the respiratory system/breathing basically via air in closer proximity and on humans meaning on boots, barn equipment, clothing, etc. Of the horses that are positive shedders 25% will be neurologic and 75% will not, they will just shed. If one of those horses sheds to a new horse the same thing holds…25% of the new horses will be neurologic and 75% will not.
This is what I'm worried about. This "shedding" aspect. Apparently the horse in Marion is expected to make a full recovery, but will it always be a carrier of this virus? How long does it take for the shedding to cease? I have the feeling that some people are going to start celebrating too soon, and get careless.
I hate to sound absolutely bonkers, but this virus could literally be lurking in every horse you meet.

My mother was researching the virus, and found an interesting medical paper that was advocating the use of the EHV-1 horse virus in human HIV drugs back in 2004. Apparently the medical field loves the virulence of the EHV-1 virus, and they like using it because it can pack in a lot of genetic material. This is not my area of expertise, but we're wondering if that's how this strain originated. Many vets have been asking for a few years now, "Where did this strain come from?" Because it just popped up from no where.
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    04-03-2014, 03:03 PM
  #19
Trained
I know, it's nuts. I'm glad that I've always been really careful about shows and what my horses touch and who touches them. Of course, now we're just looking at a loss however much of the riding season.

People were already starting to celebrate when the last positive was just recorded not even a week ago. They haven't cancelled the Expo yet or even said that no horses can come. I don't get it...
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    04-03-2014, 03:05 PM
  #20
Trained
80% of horses carry EHV-1. Its a herpes virus, just like how 80% or so of humans carry herpes simplex.
What makes an outbreak is stress (moving, showing, etc..) And what makes it Neurological is a mutation.

Then, the neurological form spreads and infects horses.

This is what I understand and why it is so important to be vigilant in biosecurity practices. ANY horse is a carrier.

With an outbreak of Neuro EHV1 the horses will stop shedding after 4-6 weeks from initially being exposed. So important to be on lockdown for at least that long after the most recent case is identified.
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