Polio Vaccine Discovered
Witness History: Archive 2014 - Een podcast door BBC World Service
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American scientists announced they had discovered an effective vaccine against polio in April 1955. It would save millions of children from disability and death. The doctor who led the research was Jonas Salk. Hear from his son Peter and a nurse who worked with him.Photograph courtesy of March of Dimes: Dr Jonas Salk innoculating his son, Peter.
