31 Jul 1873 Jahr - Hansens disease germ first discovered
Beschreibung:
Dr. Gerhard Henrik Armauer Hansen of Norway was the first person to identify the germ that causes leprosy under a microscope. Hansen's discovery of Mycobacterium leprae proved that leprosy was caused by a germ, and was thus not hereditary, from a curse, or from a sin.Zugefügt zum Band der Zeit:
Datum:
31 Jul 1873 Jahr
Jetzt
~ 150 years ago
