Will Falconer, DVM Moderator
Good points, Elle. When I worked as a newbie holistic vet in Hawaii, I met a dog from New Zealand. Rabies free islands, both of them. No one vaccinates for rabies because of this status. And yet, this dog showed classic rabies vaccinosis signs: wary of moving water, flashes of untoward aggression, perhaps even choking easily (that part's less clear in my memory).
So, how many generations back did this come from? Who knows, but the point was clearly made to me: a certain amount of illness comes from the ancestors' illness patterns. Whether that's borne out in actual genes or not, homeopaths see it regularly.
Hence, generations of healthy breeding animals, who've had few to no vaccines or pesticides, treated constitutionally with homeopathy before they are bred -- you can imagine the health those youngsters would bring into the world!