<prompt> Smallpox vaccine was discovered by:Edward JennerLouis pasteurSalkSabin  <response>: Ans: a Edward Jenner Ref:Ananthanarayan, ed, p. 457Early live vaccine such as Jenners pox vaccine, were developed emperically from natural viruses.Sabins name is related to oral polio vaccine.Salks name is related to killed polio vaccine.This is a question based on historic importance. 