Biography of Louis Pasteur, French Biologist and Chemist

Louis Pasteur (December 27, 1822–September 28, 1895) was a French biologist and chemist whose breakthrough discoveries into the causes and prevention of disease ushered in the modern era of medicine. Fast Facts: Louis Pasteur Known For: Discovered pasteurization, studies of anthrax, rabies, improved medical techniquesBorn: December 27, 1822 in Dole, FranceParents: Jean-Joseph Pasteur and Jeanne-Etiennette RoquiDied: September 28, 1895 in Paris, FranceEducation: Collà ¨ge Royal at Besancon (BA, 1842; BSc 1842), Ecole Normale Supà ©rieure (MSc, 1845; Ph.D. 1847)Spouse: Marie Laurent (1826–1910, m. May 29, 1849)Children: Jeanne (1850–1859), Jean Baptiste (1851–1908), Cà ©cile (1853–1866), Marie Louise (1858–1934),  Camille (1863–1865) Early Life Louis Pasteur was born December 27, 1822 in Dole, France, into a Catholic family. He was the third child and only son of  poorly educated tanner Jean-Joseph Pasteur and his wife Jeanne-Etiennette Roqui. He attended primary school when he was 9 years old, and at that time he didnt show any particular interest in the sciences. He was, however, quite a good artist. In 1839, he was accepted to the  Collà ¨ge Royal at Besancon, from which he graduated with both a BA and a BSc in 1842 with honors in physics, mathematics, Latin, and drawing, gaining. He later attended the prestigious Ecole Normale Supà ©rieure  to study physics and chemistry, specializing in crystals, and obtaining the French equivalents of an MSc (1845) and a Ph.D. (1847). He served briefly as a professor of physics at the Lycee in Dijon, and later became a professor of chemistry at the University of Strasbourg. Marriage and Family It was at the University of Strasbourg that Pasteur met Marie Laurent, the daughter of the universitys rector; she would become Louis secretary and writing assistant. The couple married on  May 29, 1849,  and had  five children: Jeanne (1850–1859), Jean Baptiste (1851–1908), Cà ©cile (1853–1866), Marie Louise (1858–1934), and Camille (1863–1865). Only two of his children survived to  adulthood: the other three  died of typhoid fever, perhaps leading to Pasteurs drive to save people from disease.   Accomplishments Over the course of his career, Pasteur conducted research that ushered in the modern era of medicine and science. Thanks to his discoveries, people could now live  longer and healthier lives. His early work  with the wine growers of France, in which he developed a way to pasteurize and kill germs as part of the fermentation process, meant that all kinds of liquids could now be safely brought to market—wine, milk, and even beer. He was even granted U.S. patent 135,245 for Improvement in Brewing Beer and Ale Pasteurization.   Additional accomplishments included his discovery of a cure for a certain disease that affected silkworms, which was a tremendous boon to the textile industry. He also found cures for chicken cholera, anthrax in sheep, and rabies in humans. The Pasteur Institute In 1857, Pasteur moved to Paris, where he took up a series of professorships. Personally, Pasteur lost three of his own children to typhoid during this period, and in 1868, he suffered a debilitating stroke, which left him partially paralyzed for the rest of his life. He opened the Pasteur Institute in 1888, with the stated purpose of the treatment of rabies and the study of virulent and contagious diseases. The Institute pioneered studies in microbiology, and held  the  first-ever class in the new discipline in 1889. Starting in 1891, Pasteur began to open other Institutes throughout Europe to advance his ideas. Today, there are  32 Pasteur institutes or hospitals in 29 countries throughout the world. The Germ Theory of Disease During Louis Pasteurs lifetime it was not easy for him to convince others of his ideas, which were controversial in their time but are considered absolutely correct today. Pasteur fought to convince surgeons that germs existed and that they were the cause of disease, not bad air, the prevailing theory up to that point. Furthermore, he insisted that germs could be spread via human contact and even medical instruments, and that killing germs through pasteurization and sterilization was imperative to preventing the spread of disease. In addition, Pasteur advanced the study of virology. His  work with rabies led him to realize that weak forms of disease  could be used as an immunization against stronger forms.   Famous Quotes Did you ever observe to whom the accidents happen? Chance favors only the prepared mind. Science knows no country, because knowledge belongs to humanity, and is the torch which illuminates the world. Controversy   A few historians disagree with the accepted wisdom regarding Pasteurs discoveries. At the centennial of the biologists death in 1995, a historian specializing in science, Gerald L. Geison  (1943–2001), published a book analyzing Pasteurs private notebooks, which had only been made public about a decade earlier. In The Private Science of Louis Pasteur, Geison asserted that Pasteur had given misleading accounts about many of his important discoveries. Still, other critics labeled him a fraud. Death Louis Pasteur continued to work at the Pasteur Institute until June 1895, when he retired because of his increasing illness. He died on September 28, 1895, after suffering multiple strokes. Legacy Pasteur was complicated: inconsistencies and misrepresentations identified by Geison in Pasteurs notebooks show that he was not just an experimenter, but a powerful combatant, orator, and writer, who did distort facts to sway opinions and promote himself and his causes. Nevertheless, his accomplishments were tremendous—in particular his anthrax and rabies studies, the importance of handwashing and sterilization in surgery, and most importantly, ushering in the era of the vaccine. These accomplishments continue to inspire and cure millions of people. Sources Berche, P. Louis Pasteur, from Crystals of Life to Vaccination. Clinical Microbiology and Infection 18 (2012): 1–6.Debrà ©, Patrice. Louis Pasteur. Trans. Forster, Elborg. Baltimore, Maryland: Johns Hopkins University Press, 1998.Geison, Gerald L. The Private Science of Louis Pasteur. Princeton, New Jersey: Princeton University Press, 1995.  Lanska, D. J. Pasteur, Louis. Encyclopedia of the Neurological Sciences (Second Edition). Eds. Aminoff, Michael J. and Robert B. Daroff. Oxford: Academic Press, 2014. 841–45.Ligon, B. Lee. Biography: Louis Pasteur: A Controversial Figure in a Debate on Scientific Ethics. Seminars in Pediatric Infectious Diseases 13.2 (2002): 134–41.Martinez-Palomo, Adolfo. The Science of Louis Pasteur: A Reconsideration. The Quarterly Review of Biology 76.1 (2001): 37–45.Tulchinsky, Theodore H. Chapter 6: Pasteur on Microbes and Infectious Diseases. Case Studies in Public Health. Ed. Tulchinsky, Theodore H.: Academic Press, 2018. 10 1–16.