From:
ferrethealer@aol.com
Date: 2009-02-13 01:28:07 UTC
Subject: Vaccine shelf-life once mixed Re: [ferrethealth] Digest Number 1434
To: ferrethealth@yahoogroups.com
In a message dated 02/12/09 3:31:21 AM Eastern Standard Time,
ferrethealth@yahoogroups.com writes:
On the issue of half-doses. Once a vaccine is diluted, it has a
shelter life, and certainly not a week later, but would you please
give us that effective shelf-life of a vaccine once it is diluted.
This question is not posed for those that are embracing the half-dose
regimen (PLEASE STOP), but for us all vac'ing our own ferrets in our
charge.
**Really, a vaccine should be used immediately after mixing it. The reason
they are shipped as a powder and a diluent is to maintain stability of the
vaccine, and once it is mixed, the vaccine could start to break down, as well as
sterility possibly being compromised. I have, however, on occasion had a
vaccine mixed that I then used the following day (kept in refrigerator) and have
had ferrets develop decent titers after it's use.
So, bottom line is - no more than 24 hours and ideally right after mixing.**
Dr. Ruth
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[Non-text portions of this message have been removed]
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