Many vaccinations were used by Pasteur . He made vaccines by inserting weakened germs into your body, so your body can build up a defense against the germ. He first tested his rabies vaccine on dogs to make sure it worked before he used it on humans. The very first person to have the rabies vaccine was Joseph meister.
Louis Pasteur created the pasteurization of milk wine and food. He first tested it on wine and beer. To pasteurize the milk you boil it to kill the bacteria. Pasteurization also reduces spoilage.