Short answers, pulled from the story.
John A. Kolmer created the first experimental polio vaccine by grinding spinal cords from infected monkeys and treating them with ricinolate. He distributed 12,000 doses to approximately 700 physicians across the United States and Canada without providing administration instructions.
Jonas Salk announced a successful test on adults and children via CBS radio on the 26th of March 1953. Two days later the results appeared in JAMA medical journal after his team developed the effective vaccine in 1952 at the University of Pittsburgh.
The Cutter vaccine caused 260 cases of polio resulting in 11 deaths because improperly prepared lots allowed live poliovirus into more than 100,000 doses. The Surgeon General pulled all polio vaccines made by Cutter Laboratories from the market immediately following these reports.
Annual polio cases dropped dramatically from 35,000 in 1953 to 5,600 by 1957. By 1961 only 161 cases were recorded nationwide following the launch of vaccination campaigns across the United States.
Polio elimination occurred in the Americas by 1994 while officially eliminated in 36 Western Pacific countries including China and Australia in 2000. Europe declared polio-free in 2002 and India declared a polio-free country by March 2014 after years of intensive vaccination efforts.