How close are we to having another worldwide health crisis? Epidemiologists predict that another pandemic is comingone that could kill hundreds of millions of people. Learn about factors that contribute to the spread of disease by examining past pandemics and epidemics. Examine case studies of potential pandemic diseases, and discover how scientists strive to contain and control the spread of disease both locally and globally. See how human activities such as global air travel and the disruption of animal habitats contribute to the risk of a new pandemic. And investigate the challenges we face with antibiotic-resistant bacteria and mutating viruses. Can scientists control the spread of disease and prevent the next pandemic?