Mariand2ezlei Mariand2ezlei

07-08-2016
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What contribution did jonas salk make to science in the 1950s?

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WorldlyGlass49 WorldlyGlass49

10-08-2016

Jonas Salk was an important American medical researcher and virologist, who is mostly known for developing the first successful polio vaccine in 1955.

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bellatrixblack568 bellatrixblack568

12-10-2018

He created a vaccine against polio.

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