
10. Jonas Salk (b. 1914 d. 1995)
Known universally for his 1952 breakthrough in polio vaccination (released to the public in 1955), Salk was a truly altruistic researcher who genuinely worked towards the betterment of mankind. After successful inoculations with monkeys, Salk tested his polio vaccine on himself, his wife, and even his children. When asked who owned the patent to the vaccination, Salk was astonished at the idea that anyone would want to make a profit off of a much-needed cure. Today in the United States, Albert Sabin's oral polio vaccination is used exclusively.
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