From: 
ferretsonly 
Date: 2002-06-21 00:23:00 UTC
Subject: Re: first time annuals---any preferrence?
             >According to the vets here, Fervac has a lower rate of
> reaction than Galaxy-D, but isn't completely free of 
>reactions.  
I believe that it is exactly the opposite. Many vets and home users 
quit using Fervac and went back to the unapproved Galaxy-D because of 
the tremendous number of reactions with Fervac (from 1-10% according 
to my research). I know of many ferrets that have had adverse 
reactions or died from Fervac. Personally have never known of an 
adverse reaction to Galaxy although I'm sure they have occured. 
I don't know who did this page but the information seems accurate 
(except for the error in the banner about "third most popular pet"):
http://www.ferret-universe.com/health/distemper.html
>It's pretty new, though, so no one really has experience 
>with its use over multiple years yet.
I have used it since at least 1995 (when Cooper went into 
anaphylactic shock and almost died from Fervac) and I think since 93. 
     -Carla