Albert Calmette

Infobox Scientist
name = Albert Calmette
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caption = Albert Calmette
birth_date = July 12, 1863
birth_place = Nice, France
death_date = October 29, 1933
death_place = Paris
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field = bacteriologist
work_institutions = Pasteur Institute
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known_for = Bacillus Calmette-Guérin antivenin
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Léon Charles Albert Calmette (July 12, 1863 – October 29, 1933) was a French physician, bacteriologist and immunologist, and an important officer of the Pasteur Institute. He discovered the Bacillus Calmette-Guérin, an attenuated form of Mycobacterium used in the BCG vaccine against tuberculosis. He also developed the first antivenin for snake venom, the Calmette's serum.

Calmette was born in Nice, France. He wanted to serve in the Navy and be a physician, so in 1881 he joined the School of Naval Physicians at Brest. He started to serve in 1883 in the Naval Medical Corps in Hong Kong, where he studied malaria and got his doctoral degree in 1886 on this subject. He was then assigned to Saint-Pierre and Miquelon, where he arrived in 1887. After, he served in West Africa, in Gabon and French Congo, where he researched malaria, sleeping sickness and pellagra.

Upon his return to France in 1890, Calmette met Louis Pasteur (1822-1895) and Emile Roux (1853-1933), who was his professor in a course on bacteriology. He became an associate and was charged by Pasteur to found and direct a branch of the Pasteur Institute at Saigon (French Indochina), in 1891. There, he dedicated himself to the nascent field of toxicology, which had important connections to immunology, and he studied snake and bee venom, plant poisons and curare. He also organized the production of vaccines against smallpox and rabies and carried out research on cholera, and the fermentation of opium and rice.

In 1894, he came back to France again and develop the first antivenoms for snake bites using immune sera from vaccinated horses ("Calmette's serum"). Work in this field was later taken up by Brazilian physician Vital Brazil, in São Paulo at the Instituto Butantan, who developed several other antivenoms against snakes, scorpions and spiders.

He also took part in the development in the first immune serum against the bubonic plague (black pest), in collaboration with the discoverer of its pathogenic agent, "Yersinia pestis", by Alexandre Yersin (1863-1943), and went to Portugal to study and to help fight an epidemic at Oporto.

In 1895, Roux entrusted him with the directorship of the Institute's branch at Lille, where he was to remain for the next 25 years. In 1909, he helped to found the Institute branch in Algiers (Algeria). In 1901, he founded the first antituberculosis dispensary at Lille, and named it after Emile Roux. In 1904, he founded the "Ligue du Nord contre la Tuberculose" (Northern Antituberculosis League), which exists until today. In 1918, he accepted the post of assistant director of the Institute in Paris.

Research on tuberculosis

Calmette's main scientific work, which was to bring him worldwide fame and his name permanently attached to the history of medicine was the attempt to develop a vaccine against tuberculosis, which, at the time, was a giant killer disease. The German microbiologist Robert Koch had discovered, in 1882, that the tubercle bacillus, "Mycobacterium tuberculosis" was its pathogenic agent, and Louis Pasteur became interested in it, too. In 1906, a veterinarian and immunologist, Camille Guérin, had established that immunity against tuberculosis was associated with the living tubercle bacilli in the blood. Using Pasteur's approach, Calmette investigated how immunity would develop in response to attenuated bovine bacilli injected in animals. This preparation received the name of its two discoverers ("Bacillum Calmette-Guérin", or BCG, for short). Attenuation was achieved by cultivating them in a bile-containing substrate, based on idea given by a Norwegian researcher, Kristian Feyer Andvord (1855-1934). From 1908 to 1921, Guérin and Calmette strived to produce less and less virulent strains of the bacillus, by transferring them to successive cultures. Finally, in 1921, they used BCG to successfully vaccine newborn infants in the Charité in Paris.

The vaccination program, however, suffered a serious setback when 72 vaccinated children developed tuberculosis in 1930, in Lübeck, Germany, due to a contamination of some batches in Germany. Mass vaccination of children was reinstated in many countries after 1932, when new and safer production techniques were implemented. Notwithstanding, Calmette was deeply shaken by the event, dying one year later, in Paris.

He was the brother of Gaston Calmette (1858-1914), the editor of "Le Figaro" who was murdered in 1914 by Henriette Caillaux, socialite wife of Finance Minister Joseph Caillaux.

References

* Bernard, N., and Negre, L. 1940. "Albert Calmette, sa vie, son oeuvre scientifique". Masson et Cie, Paris.
* Calmette, L.C.A. The treatment of animals poisoned with snake venom by the injection of anti-venomous serum. "The Lancet", 1896, 2: 449-450.
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External links

* [http://www.whonamedit.com/doctor.cfm/2413.html León Charles Albert Calmette] . WhoNamedIt site.
* [http://www.pasteur.fr/infosci/archives/cal0.html Albert Calmette (1863-1933)] . Repéres Chronologiques. Institut Pasteur, Paris (In French).