Gerhard Armauer Hansen

Gerhard Henrik Armauer Hansen (Norwegian pronunciation: [ˈɡæ̂rhɑɖ ɑrˈmæ̀ʉər ˈhɑ̂nsn̩]; 29 July 1841 – 12 February 1912) was a Norwegian physician, remembered for his identification of the bacterium Mycobacterium leprae in 1873 as the causative agent of leprosy. His distinguished work was recognized at the International Leprosy Congress held at Bergen in 1909.