m4olynLandasia m4olynLandasia

Today at 6:39 PM
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What contribution did Jonas Salk make to science in the 1950s?

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Аноним Аноним

Today at 6:45 PM

Jonas Salk was an American medical researcher and virologist. He discovered and developed one of the first successful polio vaccines in the 1950's.

Hope I helped. :)

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ShoryRae17 ShoryRae17

Today at 6:44 PM

made vaccines against polio

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