SPECIAL PRICE APPLIES. ..Dr Jonas Salk (October 28, 1914- June 23, 1995), American medical researcher and virologist. He discovered and developed the first successful inactivated polio vaccine. He is pictured in 1956. Girl no relation, one of the recipients of the Salk Vaccine. . (KEYSTONE/CAMERA PRESS/Yousuf Karsh)
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COPYRIGHTPFLICHTIG SPECIAL PRICE APPLIES. . , SPECIAL FEES, CLEARANCE REQUIRED,
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