Since the development of a Polio vaccine in the 1950s, the number of cases of the devastating disease has been reduced by 99 percent. But despite a cure, people in three countries still suffer from the disease. Now, foundations like the World Health Organization, Centers for Disease Control and Prevention and UNICEF have teamed up to eradicate the disease. In recognition of World Polio Day, watch live as TIME editor-at-large Jeffery Kluger discuss Polio and what can be done to end it.