On April 12, 1955, the Salk vaccine for polio was declared BԪַsafe, effective and potent.BԪַ Jonas Salk, inventor of the BԪַkilled polio virus vaccineBԪַ was interviewed by CBS newsman Edward R. Morrow and was asked who owned the patent. BԪַWell, the people, I would say.BԪַ
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