The biography of Louis Pasteur

Louis Pasteur

Louis Pasteur (1822-1895) was a French chemist and biologist. He demonstrated the role of "germs" (microscopic living things like bacteria) in the transmission of infectious diseases and developed the vaccine against rabies.
Degree in physics and chemistry, Louis Pasteur specializes in the study of microscopic organisms (microorganisms). In 1854 became Director of the Faculty of Lille, he demonstrates that the formation of the alcohol in wine or beer, for example, is caused by yeast (fungi). He also develops a method for preserving milk: pasteurization. This process involves heating the milk to a high temperature to kill bacteria responsible for fermentation.
Comparing diseases fermentation, Pasteur imagine that infectious diseases such as tuberculosis may be due to micro-organisms spread and multiply in the body. And studying silk worms sick, he discovered that the disease actually comes from invisible to the naked eye elements present inside animals. It also shows that the disease is contagious.
Louis Pasteur became interested in diseases affecting the animals after isolating the bacterium responsible for the disease ("seed"), he seeks a way to protect the body against infection. He then had the idea of introducing in the body of animals less dangerous form of the germ, which allows it to be protected against future infections: the principle of vaccination. It then identifies the seeds of several fatal human infections, such as cholera and tuberculosis. Finally, the principle of vaccination, he practiced on a young boy in 1885, the first vaccine against rabies.

In 1888, Pasteur became head of the Pasteur Institute, established in Paris. When he died in 1895, he received a state funeral. Revealing the importance of the world of microbes (including bacteria), it has revolutionized medicine, food and environment has changed permanently hygiene habits.