Biology, asked by ruhimeraj07, 7 months ago

Polio vaccine was discovered by
O Dr. Y. Subba Rao
O O
Dr. Ronald Ross
h
O Dr.Albert Sabin
Dr. Alexander Flemming

Answers

Answered by sharvilpatil05

2

Answer:

Dr Alexander Fleming...........

Answered by Sdivii

2

Answer:

Dr.Jonas Salk discovered polio vaccine.

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