An introduction to the life of louis pasteur

Context This lesson is the second in a two-part series on microbes. In earlier grades, students explored the health of the human body. They learned about deterrents to good health, such as tobacco, alcohol, and drugs.

An introduction to the life of louis pasteur

For most of the medieval times, the prevalent theory regarding illnesses was the miasma theory. The miasma theory claims that diseases such as cholera, chlamydia and the plague were caused by a miasma — a noxious bad air.

In the s, people started questioning the theory, and some scientists like John Snow started writing essays about their observations regarding the invalidity of miasma theory.

However, it was Pasteur that first proved that germs make us sick. He found not only that microorganisms can make us sick, but he also wrote recommendations on how to kill the germs and protect ourselves.

In order to support his theory, he exposed freshly boiled broth to air in vessels that contained a filter to stop all particles from entering. Nothing grew inside the broths, so it was clear that the things that usually grow in such broths come from outside.

Having previously demonstrated that microorganisms not only cause diseases but also cause foods to ferment and go stale, he realized that by heating beer or wine, he could prevent them from turning sour.

This process eliminated pathogenic microbes and lowered microbial numbers to prolong the quality of the beverage.

An introduction to the life of louis pasteur

This process is still widely used today, especially for dairy products and beers. So if you like milk or beer, you have Pasteur to thank. Saving the European Silk Industry While he was working on germ theory, Pasteur also had another major accomplishment: The French silk industry was already seriously affected, and the disease was starting to spread to other areas.

Pasteur saved the silk industry in France by developing a method to screen silkworms eggs for those that are not infected — this method is still used today.

Immunology and Vaccination As the man that finally proved how dangerous germs can be, Pasteur felt responsible to work tirelessly on fighting diseases. After a rather strange series of events which included his assistant going on vacation and not doing the work he was supposed to do, Pasteur realized that he accidentally found a way to develop a vaccine.

The island with 1 snake per square meter The notion of a weak form of a disease causing immunity to the virulent version was not entirely new, but Pasteur wanted to develop this method for things like anthrax and cholera.

Toussaint never received credit for his work.

An introduction to the life of louis pasteur

However, he still made other great contributions to immunology and vaccination. The Pasteur Institute Pasteur founded an institute to carry on his legacy and continue his research.

It houses research units and close to 2, people, including permanent scientists and even more visiting scientists. Among the achievements of scientists working at the institute is a better understanding of diphtheria, a disease that used to kill thousands of children each year, a tuberculosis vaccine, a typhoid vaccine, and many other important achievements.

These are just some of the events which Louis Pasteur, the brilliant scientist, is revered for today.A version of this archives appears in print on April 29, , on Page BR4 of the Sunday Book Review with the headline: Louis Pasteur, Man of Medicine and Physic; THE LIFE OF PASTEUR.

By Rene. Food Timeline: history notes--colonial America and 17th & 18th century France. Louis Pasteur is known as "the father of microbiology." He earned this esteemed title by doing much more than inventing the process of pasteurization. Pasteur's lifetime of discoveries followed a natural arc; each project he worked on led him to his next insight.

Short about Louis Pasteur Was an born, French microbiologist and chemist and is considered to be one of the most foremost founders of medical microbiology.

The assertion that “life only comes from life” was stated by Louis Pasteur in regard to his experiments that definitively refuted the theory of _____. Show Answer The assertion that “life only comes from life” was stated by Louis Pasteur in regard to his experiments that definitively refuted the theory of spontaneous generation.

Going back to Louis Pasteur himself, the last part of his life was no less productive than the rest. It is then, indeed, that he outlined the overall principles of vaccination and contributed to .

Louis Pasteur — Wikipédia