Paul Uhlenhuth: German bacteriologist (1870 - 1957) | Biography, Bibliography, Facts, Information, Career, Wiki, Life
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Paul Uhlenhuth
German bacteriologist

Paul Uhlenhuth

Paul Uhlenhuth
The basics

Quick Facts

Intro German bacteriologist
Was Bacteriologist Educator
From Germany
Field Academia Biology
Gender male
Birth 7 January 1870, Hanover
Death 13 December 1957, Freiburg im Breisgau (aged 87 years)
The details (from wikipedia)


Paul Theodor Uhlenhuth (7 January 1870 in Hanover – 13 December 1957 in Freiburg im Breisgau) was a German bacteriologist and immunologist, and Professor at the University of Strasbourg (1911–1918), at the University of Marburg (1918–1923) and at the University of Freiburg (1923–1936). He was rector of the University of Freiburg 1928–1929. After his retirement in 1936, he led his own research institute in Freiburg, known as the State Research Laboratory, until his death in 1957.
He is famous in the annals of forensic science for developing the species precipitin test, known as the Uhlenhuth test, which could distinguish human blood from animal blood in 1901, a discovery which had tremendous importance in criminal justice in the 20th century. In 1915, he discovered the pathogen of Weil's disease. He also invented the arsenic treatment of syphilis and the antimony treatment of many tropical diseases, and was an influential promoter of cancer research. He was a recipient of numerous honours, and was a member of the Academy of Sciences Leopoldina and the Royal Swedish Academy of Sciences. He was nominated for the Nobel Prize in Medicine 40 times between 1910 and 1952, notably by Nobel laureate Karl Landsteiner. At the time of his death, he was one of the most celebrated medical researchers in Germany, and one of the rare examples of someone who was equally celebrated in the west and east during the Cold War.

Career and research

Starting with the a significant discovery by Emil von Behring that animals inoculated with diphtheria toxin formed defensive substances in their blood serum. These defensive substances were named precipitins. Other scientists principally Jules Bordet tried devising serums against other infectious agents; They found that the precipitins were specific to the antagonist injected. In 1900, building off Bordet's work, Uhlenhuth injected hen's blood into rabbits, then he mixed serum from the rabbit with egg white. The egg proteins separated (precipitated) from the mixture. He was able to conclude that the blood of different species of animals contained unique proteins. These discoveries extended to being able to differentiate human blood from animal blood.

Fellow scientist, Otto Beumer, professor of forensic medicine at the University of Greifswald and the coroner of Greifswald, learned of Uhlenhuth's work and joined him in perfecting the detection of human blood in dried bloodstains that were months or years old.

His new technique was first used in the case of two murdered and dismembered children in the town of Göhren on the Baltic island of Rügen. The suspect in the case, Ludwig Tessnow claimed that the stains on his clothing were either cattle's blood or wood stain from a carpentry project. They were able to prove otherwise. Tessnow was executed for his crime in 1904. Uhlenhuth was nominated 40 times for the Nobel Prize in Medicine between 1910 and 1952, notably by Nobel laureate Karl Landsteiner.

In 1915 Uhlenhoth was co-discoverer of Leptospira interrogans strain RGA, a cause of Weil's disease, a severe form of leptospirosis characterized by epistaxis, jaundice, chills, fever, muscle pain, and hepatomegaly, it was one of the many ailments to afflict soldiers involved in the trench warfare of World War I.

In 1942 he was awarded the Emil von Behring prize, which is awarded every two years by the University of Marburg for outstanding achievements in immunology, serum therapy and chemotherapy. Uhlenhuth had multiple articles published in peer reviewed journals and was an active researcher in various areas of bacteriology and immunology including research into chemotherapy and syphilis. Paul Ehrlich, winner of the 1908 Nobel Prize in Medicine, was an associate of Uhlenhuth.

After he retired from his chair at the University of Freiburg in 1936, he led his own research institute in Freiburg, originally known as the State Research Laboratory. The institute was established with financial support from the German Research Council and was led by Uhlenhuth until his death in 1957 at the age of nearly 88. In the early 1950s, the institute became part of the Faculty of Medicine at the University of Freiburg. Uhlenhuth was a lifelong monarchist and was generally known by the title Geheimrat, which he had been awarded during the monarchy. From the 1930s he took an interest in building cooperation with Japanese medical scientists.

Honours (selection)

Over half a century until his death, Uhlenhuth received numerous honours for his work, including

  • The honorary title Geheimrat (Privy Councillor), 1906
  • Fellow of the Academy of Sciences Leopoldina, 1932
  • Foreign Member of the Royal Swedish Academy of Sciences, 1936
  • Emil von Behring Prize, 1942
  • Honorary citizen of Freiburg, 1950
  • National Prize of East Germany First Class "for his influential research in the fields of bacteriology and hygiene," 1953
  • Commander of the Order of Merit of the Federal Republic of Germany, 1955
  • Honorary doctorate in medicine, Ghent University
  • Honorary doctorate in veterinary medicine, Hanover Veterinary College
  • Honorary doctorate in medicine, University of Greifswald, 1955
  • Honorary President of the German Society for Hygiene and Microbiology, 1955
  • Honorary member of the Microbiological Society of Berlin, 1955

External References

  • The Episode “Blood” from the series “Adventure of Criminalistics” IMDB about Paul Uhlenhuth.


  • Herbert A. Neumann, Paul Uhlenhuth: Ein Leben für die Forschung, ABW Wissenschaftsverlag, 2004, 269 pages, ISBN 3936072337

The contents of this page are sourced from Wikipedia article. The contents are available under the CC BY-SA 4.0 license.
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