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23 ene 1956 año - Albert B. Sabin

Descripción:

He created the oral polio vaccine, the vaccine consists of strains of the weakened form of polio. His oral polio vaccine could passively immunizie other people as well.

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Tis but a scratch: Disease Timeline

BySora
13 dic 2018
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fecha:

23 ene 1956 año
Ahora mismo
~ 69 years ago

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