Wonderfully informative and frightening; not too technical for the average reader, but it helps if you took bio-chemistry. I'm fascinated with diseases and their effect on history a laGuns, Germs, and Steel, and this book gives you a sense of how enormous such a tiny, picky little bug can be. It's effects have reached into the 20th century. The doctors and scientists searching for a cure for Tuberculosis is a fantastic history story. However, the story of our failure to eradicate this insidious bacteria and the rise of drug resistance is chilling at best.