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 5769 Views This Husky is Having the Worst Day Ever Nenad Main 2006 Views Little Free Library Shares Note From Grateful Patron Who Learned To Read At 42!