I'd have to say that the best this list is going to accomplish is a RELATIVE reaction percentage. Our reaction percentage was over 10% (considerably more than 2%) at one time. That's 10% of the ferrets that were vaccinated in our shelters had a reaction. But it's still just a number that's relative only to ferrets that are vaccinated in our shelter and not relative to the number of ferrets that should be vaccinated nationwide. We have since implemented a 3-day pre-treatment regimen and ordered vaccine direct from United and that has reduced the percentage to less than 2%... but that's still just relative to our shelters. I'm really more afraid that the reason the real culprit of the anecdotal LACK of reports of reactions is that ferrets (we know they're out there because someone's buying them from pet stores) aren't getting vaccinated. Pet owners that care about their pets enough to subscribe to a list like this to be informed are a minority in the real world. Most pet owners don't bother with vaccinations. I wouldn't even consider trying to guess the percentage of pets that have never been to a vet. You can verify this by simply asking people in the pet food aisle at Walmart questions about their vets and the last time they took a pet in. Again.... it's anecdotal.... You're just asking people who buy inexpensive pet food.... But then, Walmart sells more pet food than your vet does... It's back to the age-old squeaky wheel. There aren't enough reports versus the number of ferrets to warrant a can of grease. So the verdict of the powers that be must surely look like: "Petsmart & Petco alone sold 10,000 ferrets, and in this same time span there have been 200 reactions and some of those from private breeders.... Well, that's not a bad percentage! What ARE these people complaining about?" The moral of the story... squeak where you can be heard. Have your vet report reactions. With the statistics stacked against us, each report counts. And in the meantime, be prepared to treat for a reaction. For those interested in the particulars: We give no less than 0.5cc and up to 1cc of children's oral Benedryl once a day for the 3 days before shot day. We then give up to 1cc of children's oral Benedryl 30 minutes before the vaccination. The amount of Benedryl given each ferret is determined by the ferret's weight and previous reactions. We implemented this procedure on the advice of our vet and I highly recommend it. Previously we had near fatal reactions as early as the 1st annual booster. With each and every booster the chance of a reaction increases. Having a sleepy ferret for 4 days is immensely preferable to watching one suffer anaphylactic shock. You should discuss dosages with your vet. Not vaccinating is NOT an option. Debi Christy Ferrets First Foster Home [Posted in FML issue 3240]