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Who developed the polio vaccine? George Marshall Jonas Salk Marie Curie Carlos Finlay
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5 votes
Who developed the polio vaccine?

George Marshall
Jonas Salk
Marie Curie
Carlos Finlay

User Andrei U
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2 Answers

4 votes
Jonas Salk developed the polio vaccine.
User Ryan From Denver
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3 votes
Dr. Jonas Salk developed the polio vaccine.

User DotThoughts
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