Jadassohn

Jadassohn Joseph (Joseph Jadassohn; 1863-1936), one of the leading European dermatologists and venereologists; received his medical education at the universities of Göttingen, Leipzig, Heidelberg, and Breslau. After graduating from the medical faculty in 1886, he was an assistant to Professor A. Neisser; from 1892 to 1896, he was chief physician of the dermatovenereology department of the hospital in Breslau; from 1896, extraordinary professor and director of the dermatovenereology clinic in Bern; from 1904, ordinary professor in Bern; from 1917, director of the clinic in Breslau; in 1918, he declined an offer to take over the leadership of the clinic in Berlin. In 1931, he retired, and in 1934, after the fascists came to power in Germany, he left the country and moved to Switzerland. J. earned worldwide recognition in the field of dermatovenereology through both his scientific works and the extensive public health work in the fight against venereal diseases, which he conducted as chairman of the German Society for the Fight Against Venereal Diseases, secretary of the German Dermatological Society, member of the hygiene commission of the League of Nations, in which he was the first representative of dermatovenereology. To J. belongs a large number of works in the field of dermatology; he described diseases bearing his name—granulosis rubra nasi (1901), dermatitis psoriasiformis nodularis, pityriasis lichenoides, or so-called Jadassohn's disease; works devoted to salvarsan therapy and the prevention of syphilis are rightly considered leading in contemporary practice. J. was the publisher of the fundamental multi-volume guide to dermatovenereology "Handbuch der Haut- u. Geschlechtskrankheiten" (Berlin, 1924-1934), to the participation in which he attracted more than 200 leading representatives of this discipline; co-editor of "Archiv für Dermatologie u. Syphilis", "Zentralblatt für Haut- u. Geschlechtskrankheiten", "Ikonographia dermatologica", and others. J. took an active part in the work of the 2nd All-Union Congress on the Fight Against Venereal Diseases in the USSR (in 1925).