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Who developed the polio vaccine?
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Asked 2/22/2012 3:54:36 PM
Updated 2/22/2012 4:59:35 PM
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User: Who developed the polio vaccine?

Weegy: could you please more specific about the question?
rose_p|Points 315|

Question
Asked 2/22/2012 3:54:36 PM
Updated 2/22/2012 4:59:35 PM
1 Answer/Comment
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The first polio vaccine was developed by Jonas Salk. Later an oral vaccine was developed by Albert Sabin.
Added 2/22/2012 4:59:35 PM
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Confirmed by andrewpallarca [2/18/2014 6:35:20 PM]
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Japan exercised its newfound military might when it invaded a. Manchuria b. China c. Korea d. Russia
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Japan exercised its newfound military might when it invaded Manchuria.
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