A poliovirus vaccine consisting of inactivated polio virus that is injected subcutaneously to provide immunity to poliomyelitis.
1Within 17 years, the Salk vaccine was developed, and polio was defeated.
2After seven years, a field trial was set up to test the Salk vaccine.
3It will soon supplant the Salk vaccine.
4Photo: Courtesy March of Dimes Polio was a feared condition until 1955 when the Salk vaccine was introduced.
5The nationwide study "designed to test the safety and efficacy" of the Salk vaccine had officially begun.
6The Sabin vaccine was adopted as the standard by 1961, the Salk vaccine remembered mainly as a historically important stopgap.
7Salk vaccine kind of shots.