[QUOTE=Cryptocode;1091274]The holistic vet just said they were ineffective. A rabies shot, for example, had been shown to be effective only for 1 day. I don't know any more than that.[/QUOTE]
I would really like to see some data to support that. Any idea what resource your vet used?
Rabies is still present in many reservoir species in this country and I would suspect more rabies outbreaks in dogs if vaccines were that ineffective. Countries where rabies vaccines are not used have frequent rabies outbreaks in dog population. Plus, from an immunologic standpoint - nothing would really be effective for only 1 day - not much in your immune system works that way.