The centenary of the discovery of the leprosy bacillus.
D001432:Bacteriology / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007918:Leprosy / Q000266:history* / Q000382:microbiology; D009166:Mycobacterium leprae / Q000302:isolation & purification*; D009664:Norway