The new Merial vaccine Purevax TM ferret distemper vaccine is readily available to veterinarians. Ask your vet to order some for when he gives your ferrets their annual vaccinations. It costs a bit more but it is well worth it. So far at our hospital we have used it on a number of mine without a problem. We haven't finished all of them yet, but so far so good. Pat Stauffer Weasels http://pages.prodigy.net/staufferp/ [Posted in FML issue 3563]