Erich Hoffmann
Encyclopedia
Erich Hoffmann was a German dermatologist who was a native of Witzmitz
Wicimice
Wicimice is a village in the administrative district of Gmina Płoty, within Gryfice County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately north-east of Płoty, south-east of Gryfice, and north-east of the regional capital Szczecin.Before 1945 the area was part of...

, Pomerania
Pomerania
Pomerania is a historical region on the south shore of the Baltic Sea. Divided between Germany and Poland, it stretches roughly from the Recknitz River near Stralsund in the West, via the Oder River delta near Szczecin, to the mouth of the Vistula River near Gdańsk in the East...

. He studied medicine at the Berlin Military Academy, and was later a professor at the Universities of Halle and Bonn
University of Bonn
The University of Bonn is a public research university located in Bonn, Germany. Founded in its present form in 1818, as the linear successor of earlier academic institutions, the University of Bonn is today one of the leading universities in Germany. The University of Bonn offers a large number...

.

Hoffmann is remembered for his research performed with zoologist Fritz Schaudinn
Fritz Schaudinn
Fritz Richard Schaudinn was a German zoologistBorn in Röseningken, East Prussia, he co-discovered, with Erich Hoffmann in 1905, the causative agent of syphilis, Spirochaeta pallida...

 (1871-1906) at the Charité
Charité
The Charité - Universitätsmedizin Berlin is the medical school for both the Humboldt University and the Free University of Berlin. After the merger with their fourth campus in 2003, the Charité is one of the largest university hospitals in Europe....

 Clinic in Berlin
Berlin
Berlin is the capital city of Germany and is one of the 16 states of Germany. With a population of 3.45 million people, Berlin is Germany's largest city. It is the second most populous city proper and the seventh most populous urban area in the European Union...

. In 1905 Schaudinn and Hoffmann discovered the bacterium that was responsible for syphilis
Syphilis
Syphilis is a sexually transmitted infection caused by the spirochete bacterium Treponema pallidum subspecies pallidum. The primary route of transmission is through sexual contact; however, it may also be transmitted from mother to fetus during pregnancy or at birth, resulting in congenital syphilis...

, a spiral-shaped spirochete called Treponema pallidum
Treponema pallidum
Treponema pallidum is a species of spirochaete bacterium with subspecies that cause treponemal diseases such as syphilis, bejel, pinta and yaws. The treponemes have a cytoplasmic and outer membrane...

. The organism was removed from a papula
Papula
Papulae , also known as dermal branchiae or skin gills, are projections of the coelom of Asteroidea that serve in respiration and waste removal. Papulae are soft, covered externally with the epidermis, and lined internally with peritoneum. They extend through the mesodermal ossicles and are...

 in the vulva
Vulva
The vulva consists of the external genital organs of the female mammal. This article deals with the vulva of the human being, although the structures are similar for other mammals....

 of a patient with secondary syphilis. The two doctors documented their findings in a treatise called Vorläufiger Bericht über das Vorkommen von Spirochaeten in syphilitischen Krankheitsprodukten und bei Papillome.

Hoffmann left Germany during the era of National Socialism, but returned to Bonn
Bonn
Bonn is the 19th largest city in Germany. Located in the Cologne/Bonn Region, about 25 kilometres south of Cologne on the river Rhine in the State of North Rhine-Westphalia, it was the capital of West Germany from 1949 to 1990 and the official seat of government of united Germany from 1990 to 1999....

after the war, and established a laboratory. In the late 1940s he published two books about his life in medicine, titled "Wollen und Schaffen" and "Ringen um Vollendung".
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