Feel a tickle in your throat? Do you still have that headache? Could you be falling victim to a deadly virus? From history's earliest days, bacteria and viruses have stalked humans. Stowing on wagons, ships, and airplanes, these diseases traversed the globe, infecting people in city streets and isolated hamlets. Epidemics and Pandemics: Real Tales of Deadly Diseases tells the tale of five of history's most critical contagions.