Louis Pasteur: Founder of Microbiology (Mission: Science Biographies)

French scientist Louis Pasteur, often called the founder of modern medicine, has been credited with many discoveries. One of the most important was the discovery in the 1800s that tiny organisms called germs spread disease. His scientific work helped save millions of lives. For more information on germs and other simple organisms, read Investigating Simple Organisms, another book in the Mission: Science series.