Vaccination uses dead rabies cells as a preventative.It works by giving the animal a slight case of the decease which then results in immunity. However the animal has in fact been infected.
James Jenner first tested his immunity theory by infecting a boy with cow pox by scratching his skin with the fluid from a cow pox blister. It worked and so he started using small pox fluid to vaccinate.
The word vaccine coms from the French/Spanish word for cow "Vaca"
I'm 75 and I was vaccinated with a scratch on the arm.
Cap
