Here's a link to the July 30, 2008 Animal Talk Radio interview with Dr. W. Jean Dodds: Duration of Immunity: The Rabies Vaccine Challenge - Show #185 Animal Talk Radio Show 7/30/08 http://www.blogtalkradio.com/animaltalknaturally/2008/07/30/Duration-of-Immunity-The-Rabies-Vaccine-Challenge-Show-186