Post by Raja vikram Dev

Happy Birthday 🎂 Rudolf Stefan Jan Weigl was a Polish biologist, physician, and inventor. He is most known for creating the first effective vaccine against epidemic typhus. He founded the Weigl Institute in Lwów, where he conducted vaccine research. Born: 2 September 1883, Prerov, Czechia Died: 11 August 1957, Zakopane, Poland