Jonas Salk (October 28, 1914 - June 23, 1995) is the discoverer/inventor of the eponymousSalk vaccine (see polio vaccine). This was one of the first successful attempts at immunization against a virus, specifically the Poliomyelitis virus. The vaccine provides the recipient with immunity against Polio, and was seminal in the near eradication of a once widely-feared disease.
... terrain of hills and (low) mountains to the south, home to most of Brazil's population and its agricultural base. Along the coast of the Atlantic Ocean are also found ...