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’t become rich from the vaccine. 2 of 4 Next Use your ← → (arrow) keys to browse Tweet Pin It Related Posts Jade Animals, Entertainment, Funny, Main 2721 Views Adorable Otter Plays With his Food Nenad Main 1244 Views Thanks To Technology, This Happy Elephant Is Walking Again!