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Discussion on Strangles Vaccine- Previously Infected Horse
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Member:
indigo
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Posted on Sunday, Jan 27, 2008 - 3:39 pm:
I recently read that you should not vaccinate a horse that has previously had strangles, because if you do so you have a 50% chance of killing the horse. This sounds very far-fetched to me, since many people buy adult horses without knowing their previous exposure history, and I've never heard of a horse dying from a strangles vaccine. However, the information supposedly came from CSU, so thought I would ask and see if anyone else has heard this. I've searched online and can't find anything that substantiates this claim. I have read that vaccinating carriers or horses with active strangles could cause purpura, but not all horses who have previously had strangles are carriers, so I wouldn't think it would be a common enough problem that the vaccine would potentially kill 50% of all horses who have previously had strangles.
Thanks!
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Moderator:
DrO
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Posted on Monday, Jan 28, 2008 - 8:44 am:
Though you do not ask any questions, I agree with your assessment that vaccinating horses with a history of strangles does not result in a significant rate of death. I do think it results in a significant number of vaccine complications. It is not just those with active or carrier infections that are at risk of purpura. This is a potential for any horse carrying a significant number of anti-Strangles antibodies. For our recommendations on vaccinating horses following infection see the the vaccine recommendations in the article.
DrO
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