Polio is a disease of paradoxes, the major one being that although the threat of the ``dreaded disease'' ended with the Salk vaccine in 1954, many polio survivors are now experiencing the onset of ``Post-Polio Syndrome'' (PPS), new but related symptoms which may include chronic fatigue, muscle weakness, intolerance to cold, and more. | The Polio Paradox by Richard L. Bruno, Paperback | Indigo Chapters