Louis Pasteur was a French Chemist who is remembered by his findings of medical microbiology. Ferdinand Cohn, Robert Koch, and Louis himself, made up the three founders of microbiology. Louis is commonly known for his breakthroughs in the prevention and cause of particular diseases. His experiments and discoveries led to the first vaccines for rabies and anthrax. Louis Pasteur is associated with what is known as the Germ Theory of Disease. He is also best known for discovering a process to prevent people from becoming ill after drinking wine or milk. This process is called pasteurization. Pasteurization is the act or process of heating a beverage to a specific temperature for a certain amount of time, to kill microorganisms that can cause disease, or cause the beverage to spoil. This process is still used to today and shows to be very effective in most cases.