This thorough revision contains new chapters on bioterrorism and emergency preparedness. Further bioterrorism issues have been woven through relevant chapters. New additions in epidemiology include anthrax and SARS. Additions in women's health consider new developments in hormone replacement therapy. A new emphasis has been placed on planning to include natural disasters as well as terrorism. Introduction to Public Health, Second Edition covers the basic elements of public health as well as essential data and statistics.