Yellow Fever Vaccine: There were many who contributed. For a fascinating read see: “The Yellow Fever Vaccine: A History” by J. Gordon Frierson * http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2892770/* Learn about Hugh Smith's 1937 vaccination project in Brazil & Max Theiler who earned a Nobel Prize for his work on virus attenuation.
Answered 10/5/2014
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