Well, it seems perfectly logical to guess that the whole ferrets have a lower rate per capita for their part of the population, and that is what I would guess off-hand, BUT with the qualification that the rates have not been actually gotten, so we really don't know, and studies can show surprises often enough no matter what is desired or hoped. A friend sent me a great line: The plural of anecdote is not data. -- Sukie (not a vet) Ferret Health List co-moderator http://www.smartgroups.com/groups/ferrethealth FHL Archives fan http://ferrethealth.org/archive/ replacing http://fhl.sonic-weasel.org International Ferret Congress advisor http://www.ferretcongress.org [Posted in FML issue 5123]