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.
Using low lectin/nightshade free primal to control autoimmune arthritis. (And lost 50 lbs along the way )