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Pierre Paul Émile Roux

Pierre Paul Émile Roux
Pierre Paul Émile Roux
Born December 17, 1853
Confolens (Charente), France
Died November 3, 1933
Nationality France
Fields Medicine, bacteriology, immunology
Known for Pasteur Institute
anti-diphtheria serum
Influences Louis Pasteur
Émile Duclaux
Notable awards Copley Medal (1917)

Pierre Paul Émile Roux FRS[1] (December 17, 1853, Confolens, Charente – November 3, 1933, Paris) was a French physician, bacteriologist and immunologist. Roux was one of the closest collaborators of Louis Pasteur (1822–1895), a co-founder of the Pasteur Institute, and responsible for the Institute's production of the anti-diphtheria serum, the first effective therapy for this disease.[2]


  • Early years 1
  • Work with Pasteur 2
  • Diphtheria research 3
  • Other research and later years 4
  • References 5
  • External links 6

Early years

Roux received his baccalaureate in sciences in 1871 and started his studies in 1872 at the Medical School of Clermont-Ferrand. He worked initially as a student assistant in chemistry at the Faculty of Sciences, under Émile Duclaux. From 1874 to 1878, he continued his studies in Paris and was admitted as clinical assistant at Hôtel-Dieu. Between 1874 and 1877, Roux received a fellowship for the Military School at Val-de-Grâce, but quit it after failing to present his dissertation in due time. In 1878, he started to work as an assistant to the course on fermentation given by his patron Duclaux at the Sorbonne University.

Work with Pasteur

Duclaux recommended Roux to Louis Pasteur, who was looking for assistants, and Roux joined Pasteur’s laboratory as a research assistant from 1878 to 1883 at the École Normale Supérieure in Paris. Roux began his research on the microbiological causation of diseases, and in this capacity worked with Pasteur on avian cholera (1879–1880) and anthrax (1879–1890), and was involved in the famous experiment on anthrax vaccination of animals at Pouilly-le-Fort.

In 1883, he presented a doctoral dissertation in medicine titled Des Nouvelles Acquisitions sur la Rage, in which he described his research on rabies with Pasteur since 1881, which led to the development of the first vaccination against this fearsome disease. Roux was now recognized as an expert in the nascent sciences of medical microbiology and immunology. With Pasteur’s other assistants (Edmond Nocard, Louis Thuillier, who died while in Alexandria after contracting the disease, and Straus), Roux traveled in 1883 to Egypt to study a human cholera outbreak there, but they were unable to find the pathogen for the disease, which was later discovered in Alexandria by the German physician Robert Koch (1843–1910).

Pierre Paul Emile Roux

In 1883 and for the following 40 years, Émile Roux became closely involved with the creation of what was to become the Pasteur Institute. He divided his time between biomedical research and administrative duties. In 1888, an important year in his career, he accepted the position of Director of Services, joined the editorial board of the Annales de l’Institut Pasteur, and established the first regular course on microbiological technique, which would become extremely influential in the training of many important French and foreign researchers and physicians in infectious diseases.

Diphtheria research

Also in 1883, Roux published, with Alexandre Yersin, the first of his classical works on the causation of diphtheria by the Klebs-Loeffler bacillus, then an extremely prevalent and lethal disease, particularly among children. He studied its toxin and its properties, and began in 1891 to develop an effective serum to treat the disease, following the demonstration, by Emil Adolf von Behring (1854–1917) and Kitasato Shibasaburō (1852–1931) that antibodies against the diphtheric toxin could be produced in animals. He successfully demonstrated the use of this antitoxin with Auguste Chaillou in a study with 300 diseased children in the Hôpital des Enfants-Malades and was henceforth hailed as a scientific hero in medical congresses throughout Europe.

Other research and later years

In the following years, Roux dedicated himself indefatigably to many investigations on the microbiology and practical immunology of tetanus, tuberculosis, syphilis, and pneumonia. He was elected a member of the Royal Swedish Academy of Sciences in 1900. In 1904, he was nominated to the Pasteur’s former position as General Director of the Pasteur Institute.

In 1916, he moved to a small apartment in the Pasteur Hospital, where he died on November 3, 1933.


  1. ^ "Pierre Paul Emile Roux. 1853-1933".  
  2. ^ a g, N. (1934). "Pierre Paul Emile Roux". Canadian Medical Association journal 30 (1): 70–71.  

External links

  • English biography of Pierre Paul Émile Roux. Pasteur Brewing
  • Pierre Paul Émile Roux. Biographie. Institut Pasteur, Paris.
  • Bibliography of P.P.E. Roux. Pasteur Institute.
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