Jonas Salk From the beginning of mankind, man has looked for cures of illness. Jonas Salk found a cure for one of the worst illnesses in the history of man, polio. Jonas Salk's polio vaccine was a great discovery of his time, and it is still being used today to eradicate polio worldwide. Dr. Salk is also known for other medical discoveries. He was a quiet man who lived a rough childhood. He was not looking for fame, instead, it found him. During the time before the vaccine, many people, mostly parents with young children, were very scared. Dr. Salk's vaccine was a great relief to everyone. Yet, today polio is still affecti