Social Sciences, asked by chiranjiviAndra695, 1 year ago

………., the developer of the first
successful oral vaccination for Polio
passed away recently?

Answers

Answered by nagamalla

Dr.Jonas salk , the developer of the first successful oral vaccination for polio passed away recently.

Answered by sowmyasreemajj

Dr.Hilary Koprowski ,a pioneering virologist - is the answer.

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