louis pasteur was born on december 27, 1822 in dole, in the region of jura, france. his father was a...
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Who is he? Louis Pasteur was Born on December 27, 1822 in Dole, in the region
of Jura, France. His father was a tanner, a person who prepares
animal skins to be made into leather. The men in Pasteur's family
had been tanners back to 1763, when his great-grandfather set up
his own tanning business. Part of the tanning process relies on
microbes (tiny living organisms). In tanning, microbes prepare the
leather, allowing it to become soft and strong. Other common
products such as beer, wine, bread, and cheese depend on
microbes as well.
His discovery that most infectious diseases are caused by germs,
known as the "germ theory of disease," is one of the most important
in medical history. His work became the foundation for the science
of microbiology, and a cornerstone of modern medicine.
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What did he do? Louis Pasture has created vaccines for rabies, anthrax, chicken cholera, and
silkworm diseases.
He discovered that if our body is given a weak germ of a disease, the body
will be able to fight off the real disease easier.
Louis also demonstrated that controlled heating of beet juice destroys
yeast, and prevents fermentation. This process, called "pasteurization," was
and is applied to preserve a number of foods such as cheese and milk. It
also became the basis for dramatically reducing infection in the operating
room.
In 1881 Pasteur had convincing evidence that gentle heating of anthrax
bacilli could so weaken its strength that it could be used to inoculate
animals. Inoculation is a process of introducing a weakened disease agent
into the body. The body gets a mild form of the disease, but becomes
immunized (strengthened against) the actual disease. Pasteur inoculated
one group of sheep with the vaccine and left another untreated. He then
injected both groups with the anthrax bacillus. The untreated sheep died
and the treated sheep lived.
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Why did he do what he did? Pasture got interested in micro-organisms when he was young because
tanning relied on tiny organisms to make the animal skins soft.
In 1865, a cholera epidemic hit Marseilles. Pasteur carried out a number of
experiments in a hospital in the hope of finding the germ that caused this
feared disease. He was not successful.
Pasteur and his team turned next to the disease of rabies. Most human
victims of rabies died a painful death and the disease appeared to be getting
more and more common in France. Though the team could not identify the
germ, they did find that the rabies germ attacked the nervous system only
after it had made its way to the brain. The team traced the germ to the brain
and spinal cord of infected animals and by using dried spinal cords, they
produced a vaccine for rabies. The vaccine was first tried out on animals.
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Why did he do what he did? (continued)But Pasteur faced a serious problem. What worked on
animals might not work on humans.
In 1885, a young boy, Joseph Meister, had been bitten by a
rabid dog, and was brought to Pasteur. The boy almost
certainly would have died an agonizing death if nothing was
done so Pasteur took the risk on using his untested vaccine.
The boy survived and Pasteur knew that he had found a
vaccine for rabies. Three months later, when he examined
Meister again, Pasteur reported that the boy was in good
health.
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How would the world be different if he had not made these discoveries and
How has his Discoveries Changed the World?If Louis Pasture had not made the breakthrough of
vaccines, our population would be a lot smaller because his discoveries ,of vaccines, have helped our world with the flu shot, tetanus shot, polio, and other epidemics that we have needed a vaccine for.
If Louis Pasture had not uncovered the mysteries of “pasteurization.” Without pasteurization microbes in our milk could hurt us and we could get very sick.
Louis Pasture has had a great effect on the healthiness of our food and our safety from diseases.
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Bibliographyhttp://www.notablebiographies.com/Ni-Pe/Pas
teur-Louis.htmlhttp://www.lucidcafe.com/library/95dec/paste
ur.htmlhttp://www.accessexcellence.org/RC/AB/BC/L
ouis_Pasteur.php