Dr. Ehrlich's Magic Bullet

In the late 19th and early 20th centuries, Dr. Max Erlich makes several valuable contributions to medical science. His first is the ability to stain specific elements on a laboratory slide, such as tuberculosis. The second was the ability to develop a serum to fight diseases such as typhoid by slowly building up natural immunities to the disease. From these successes, Erlich moved on to using chemicals as a cure for disease. The idea was quite radical at the time as chemotherapy simply did not exist. His success at finding a cure for syphilis proves his ideas to be correct but he is forced to defend them in court when he sues a colleague for libel.