Amandachavez94 Amandachavez94

29-01-2019
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Who invented the polio vaccine

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Аноним Аноним

29-01-2019

hello!

your answer is goin to be

Jonas Edward Salk

have a goed day

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Аноним Аноним

29-01-2019

Jonas Edward Salk

Jonas Edward Salk was an American medical researcher and virologist. He discovered and developed one of the first successful polio vaccines.

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