-
Antonie van Leeuwenhoek
discovered "protozoa" - the single-celled organisms and he called them "animalcules". He also improved the microscope and laid foundation for microbiology. He is often cited as the first microbiologist to study muscle fibers, bacteria, spermatozoa and blood flow in capillaries. -
Louis Pasteur
He made important discoveries about the role of microbes (germs) in disease and in food spoiling. ... Among his discoveries are the pasteurization process and ways of preventing silkworm diseases, anthrax, chicken cholera, and rabies. -
Robert Koch
used experiments to prove that the bacterium Bacillus anthracis was the cause of anthrax - the bacterium could be observed in the tissue of anthrax victims. He extracted this bacterium from a sheep which had died of anthrax, grew it and injected a mouse with it. -
Joseph Lister
Joseph Lister is the surgeon who introduced new principles of cleanliness which transformed surgical practice in the late 1800s
