Dr. Jonas Salk, who went to school at New York School of Medicine, developed the polio vaccine, which was made available to the public in 1955. It took 2 years of trials and nearly 2 million test subjects before the doctor was allowed to release the vaccine. Before the trials started on public volunteers, Salk and the other doctors working with him, along with their families, all took the vaccine with no problems.
Franklin D. Roosevelt was one of Dr. Salk's supporters in his effort to end polio. The vaccine was never patented by the doctor, who wanted it to be used as widely as possible to stop the disease. Cases of polio dropped from 45,000 in 1953 to 910 by 1962.