Rudolf Weigl
Rudolf Stefan Jan Weigl (2 September 1883 – 11 August 1957) was a Polish biologist, physician and inventor, known for creating the first effective vaccine against epidemic typhus. He was nominated for the Nobel Prize in Medicine each year between 1930 and 1934, and from 1936 to 1939.Weigl worked during the Holocaust to save the lives of countless Jews by developing the vaccine for typhus and providing shelter to protect those suffering under the Nazi Germans in occupied Poland. For his contributions, he was named a Righteous Among the Nations in 2003. Provided by Wikipedia