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  Discussion on West Nile Vaccination-Another Mix Up
Author Message
Member:
jjet

Posted on Monday, May 21, 2007 - 4:21 pm:

Due to my own ineptness, I made a mistake in administering the West Nile modified live vaccine (PreveNile) to my seven horses. I was ok reconstituting for the first four, but I had some interruptions as I was completing the process with he last three.

As I was preparing to reconstitute the dose for the last horse I realised I had an extra vial of the dessicated vaccine, which meant that I had injected one horse with the diluent only. I just don't know which of the two it was.

I want to re-vaccinate both horses to be safe, but I'm not sure that would be ok for the one who would be getting the second dose. The product description states that in an overdose study, 10X the dose evinced no clinical signs, so, I'm assuming that it would be alright.

What do you think, Dr. O?
Moderator:
DrO

Posted on Tuesday, May 22, 2007 - 7:58 am:

Well, given a second dose after recent vaccination is not the same as giving the a 10x dose at one time. In the first case the second dose is going into a horse with a activated immune system. Hmmm what is the past WN vaccine history Jan?
DrO
Member:
jjet

Posted on Tuesday, May 29, 2007 - 6:43 pm:

They were revaccinated with the Fort Dodge WNV vaccine last spring, but not in the fall. They also had been vaccinated with Fort Dodge the spring and summer of the year before.
Moderator:
DrO

Posted on Wednesday, May 30, 2007 - 7:53 am:

Hmmm, I would wait a month then revaccinate the two Jan. There may be slight increased risk of reaction but not much and by studying the article on reactions you can be prepared. If you are extra cautious a pre-dose of flunixin might alleviate any risk, but I would probably not do that personally. Let us know what you decide and how it turns out.
DrO
Member:
boots

Posted on Thursday, Aug 23, 2012 - 9:26 am:

Dr. O - With West Nile spreading, will it harm my horses to give another vaccination.The first was in May, this second one will be September. We have standing water and we have birds roosting in the barn. Also can encephalitis shots be redone at the same time? Thank you.
Moderator:
DrO

Posted on Sunday, Aug 26, 2012 - 5:50 pm:

Hello boots,
I believe we can help you with your question but let me get you started off right so you can get the best answer as quick as possible.

You will get more responses if you start your own discussion rather than post at the bottom of another member's discussion. Each discussion is "owned" by the original poster and all replies in that discussion should either directly or indirectly address the concerns of the original poster.

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If your question remains unanswered, now is the time to Start a New Discussion. Select a short title that describes your specific concern. A title like "Help!!!" does not help others find your specific topic. Instead something like "Ace for Colic?" allows others to rapidly find and understand what your topic is about just by viewing the title. This is likely to bring more responses from those with some experience with your topic and allows members to find answers to their questions quicker.
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