25 Stories That Will Restore Your Faith In Humanity! July 14, 2016 Main 2. Jonas Salk Source The first successful poio vaccine was discovered and developed by the American medical researcher and virologist Jonas Salk. He had no interest in personal profit, so he didn‚Äôt become rich from the vaccine. 2 of 4 Next Use your ‚Üź ‚Üí (arrow) keys to browse Tweet Pin It Related Posts Nenad Main 1057 Views Record-Breaking Mama Staffordshire Dog Gives Birth To 13 Puppies! ken Main 1665 Views I Cant Look Away! Amazing Bearded Dance Guy Crushes It!