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23 jan 1956 ano - Albert B. Sabin

Descrição:

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.

Adicionado na linha do tempo:

Data:

23 jan 1956 ano
Agora
~ 69 years ago

Imagens: