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  Discussion on Eva
Author Message
Member:
Christel

Posted on Tuesday, Jan 9, 2007 - 1:53 pm:

DrO, I am working for a barn that is going to give the eva vaccine to all their horses. How safe is it for me to work with these horses then go home to mine which are not going to be vaccinated?
My concern is my broodmares, as I have 3 and don't want to infect them and possibly cause abortions to happen.
Thank you,
Chris
Moderator:
DrO

Posted on Tuesday, Jan 9, 2007 - 8:54 pm:

Chris are they using the inactivated or MLV vaccine?
DrO
Member:
Christel

Posted on Tuesday, Jan 9, 2007 - 10:12 pm:

Im not sure, will know in the morning when vet arrives.
I was not aware their was an alternative to Ft. Dodges live vaccine, but learned today the vaccine that is prescribed for tomorrow is not made by Ft. Dodge so it very well could be an inactivated one?
If it is the inactivated, I assume it would be safe?
Thank you,
Chris
Moderator:
DrO

Posted on Wednesday, Jan 10, 2007 - 7:48 am:

A good assumption. Even the injectable MLV form strikes me as a unlikely problem since it is injected IM and attenuated. Shedding, which is a problem with the intranasal vaccines, is not likely but I cannot find any work to confirm or refute this idea. So you are just getting my best guess.

Since you work at a horse farm and maintain pregnant horses at home, when you get home from work you should remove your boots and clothes in an out of the way spot, wash your hands and face, then put on a fresh set of clothes and boots before you visit your mares. It is not the vaccine that prompts this recommendation, but active EVA, EHV-1, flu, etc...that would concern me.
DrO
Member:
Christel

Posted on Wednesday, Jan 10, 2007 - 7:52 am:

DrO, after rereading the paper on EVA the prescribing vet has written for his customers, I see that it is an mlv vaccine. It is not made by Ft. Dodge, and is made by the vet or for the vet that is prescribing the vaccine for the barn I work for. Also this same vet has given this vaccine to 800 pregnant mares with no ill effects and no aborts. I am currently waiting for the vet clinic to open to question at what stage the vaccine was given to the mares- as it is stated in your article that mares that are further than 3 months along the virus can cause abortions. All 3 of my mares are further along than 3 months, one is due early March, 1 due early May and the other early June.
I should add at this point that I do have high regard for this particular vet and use his facility for my own repro work.
Also, there are no plans to boost this initial vaccine. In your opinion is this ok?
Thank you so much DrO, I value your opinion and am anxiously waiting to hear back from you, I will not show up for work till I hear from you- ;)
Chris
Member:
Christel

Posted on Wednesday, Jan 10, 2007 - 8:06 am:

DrO, I was posting the same time as you, with the added info I provided, are your thoughts any different?
Also, how airborne is this virus? How long does the virus stay alive and viable when it is on a surface ie., clothes, shoes, stall walls etc.
This vet also takes in mares to breed to several stallions he has standing at his place. He is requiring all mares to be vaccinated 3 weeks before they arrive. While I have no plans to take a mare to his place for breeding, it concerns me to vaccinate mainly because my neighbors are so close- right across the street- I always try to be a good neighbor and would hate to cause an outbreak of sorts.
Thanks again, not sure what I would do without this site, you are awesome DrO.
Member:
Christel

Posted on Wednesday, Jan 10, 2007 - 8:24 am:

an afterthought-
I have spent many hours on the net getting info on this. I have read, but not sure where, the virus is shed for about 2 1/2 weeks after the vaccine as been administered- my main and initial concern.
The info in your article was 'right on' with everything else I have read- infact much of it was verbatim what you had already written.
Member:
Jojo15

Posted on Wednesday, Jan 10, 2007 - 9:43 am:

Hi there,
can you back up a bit and explain what you guys are talking about? i read the article and think you mean that vaccinating might have a horse shed it after the vaccination. and then you chris could bring it home? and give the actual virus to your horses? or others? Correct? Does that go for all vaccines dr. O? or this particular one? or is this for all MLVaccines?
Member:
Christel

Posted on Wednesday, Jan 10, 2007 - 12:44 pm:

DrO, I just got off the phone w/ vet prescribing the vaccine. It is Ft. Dodge's, as I thought, they are the only one making it, misscommunication from yesterday, I apologize for that. He has given the vaccine to mares at every stage of pregnancy since last May (2006), and has had absolutely no problems with it. He has been involved with this since it started last summer at the New Mexico ranch. He stands behind the vaccine 100%.
He also told me that if I vaccinate my horses, which he recommends, the only problem to my neighbors would be if they had a stallion.
He also stated, that it would be better to vaccinate my mares now, rather than chance bringing it home from the horses that are being vaccinated where I work.
While EVA seems very scary, it looks like it can be easily managed. It is good to know that the vaccine is so safe- if taking all precautions when stallions are involved. DrO if you would like to contact this vet I would be glad to email you his name, etc.. I think you would enjoy meeting him.
Chris
Moderator:
DrO

Posted on Wednesday, Jan 10, 2007 - 9:40 pm:

Jo, shedding is not possible with killed vaccines since there are no live organisms to replicate. The intranasal MLV vaccines do have shedding and this information is in the articles on the diseases where it has been reported with the corresponding vaccine. For those given IM this is not often reported but neither is evidence of lack of shedding presented. When this occurs with our commonly used vaccines it is not considered harmful.

The question with the EVA vaccine is because the vaccine is not routinely recommended for pregnant mares so if they are exposed it implies there may be a danger to the fetus(?). Chris I cannot confirm the notion that the EVA MLV vaccine causes shedding. The veterinarian's findings are interesting but has the vaccine been labeled for pregnant mares? Labeling is a funny thing and often companies will not spend the money to label a vaccine, even when know to be safe in a certain situation, and leave it up to the practitioner to make these judgements. The experiences of your veterinarian certainly suggest it is fairly safe to give to pregnant mares.
DrO
Member:
Christel

Posted on Thursday, Jan 11, 2007 - 7:41 am:

DrO- I vaccinated all my horses yesterday, figuring it would be easier and better than trying to keep it off me when working with them after being with the vaccinated ones.
I feel good with this and will post again should I have any complications.
Thank you for your responses,
Chris
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