In the 1820s, an unknown, horrifying and deadly disease from Asia swept across Continental Europe, killing millions in its path and throwing the medical profession into chaos. Cholera was a killer with little respect for class or wealth. One man uncovered the truth behind the pandemic and laid the foundations for the modern, scientific investigation of today¿s fatal plagues. John Snow was a reclusive doctor who had the genius to look beyond the conventional wisdom of his day. ¿Paints a vivid picture of medical society of the day and is full of colorful characters and practices. Amidst this emerges the dramatic story of an important breakthrough for medical science, and of one individual¿s determination to use science to help his fellow man.¿ Illustrations.