Armauer Hansen

G.H. Armauer Hansen was a Norwegian physician who made a significant discovery in the study of leprosy. In 1873, he identified the leprosy bacillus, Mycobacterium leprae, in tissue samples from a patient. This groundbreaking discovery demonstrated that leprosy is an infectious disease caused by a specific microorganism, shifting the understanding from a hereditary ailment to a curable condition.12

Leprosy is a chronic infectious disease affecting the skin, nerves, and mucous membranes. It is caused by Mycobacterium leprae and can lead to nerve damage, loss of sensation, and disfigurement. While historically feared and leading to social ostracization, leprosy is now entirely curable with modern multidrug therapy. The term "Hansen's disease" is often used as a more sensitive alternative to "leprosy," honoring Armauer Hansen's contribution and aiming to reduce stigma.12