In The Demon Under the Microscope , Thomas Hager chronicles the dramatic history of sulfa, the first antibiotic and the drug that shaped modern medicine. The Nazis discovered it. The Allies won the war with it. It conquered diseases, changed laws, and single-handedly launched the era of antibiotics. Sulfa saved millions of lives--among them those of Winston Churchill and Franklin Delano Roosevelt Jr.--but its real effects are even more far reaching...