Readers all, Indeed she has a good point BUT our own Marshall Farms USA was utilizing Dist A Mink CD vaccines for their ferrets prior to pet shop sales when we got 8 week age of sale here in NH. It had not been rated for use in ferrets even though they were using it HOWEVER the REAL ISSUE IS: these CD vaccines, ferret, mink, etc are to be utilized at 8 WEEKS OF AGE -- and the kits are shipped and sold prior to that age. EFFICACY cannot be guaranteed (if there is such a thing) unless the animal is 8 weeks old. PLUS it takes 14 days for the immune system to react and build immunity, I have been taught.. so THE REAL ISSUE IS: any kit vaccinated and shipped to a pet store under 10 weeks of age will not be able to defend itself to exposure to CD. Just my 2 cents this go around. Alicia www.ferretwise.org [Posted in FML 7101]