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 Nenad Main 1224 Views Widow Receives Touching Home Makeover To Help Cope With Loss Of Husband! Nenad Main 941 Views Baby Thrown 25 Feet Out Of Car Window Goes Home With Barely A Scratch!