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Louis Pasteur in his laboratory, painting by A. Edelfeldt in 1885. When animals were infected with the bacteria, anthrax occurred, proving that the bacteria was the cause of the disease. [107] Many cattle were dying of anthrax in "cursed fields". [70] Pasteur was told that sheep that died from anthrax were buried in the field.
The French Louis Pasteur (1822–1895) and German Robert Koch (1843–1910) are the two greatest figures in medical microbiology and in establishing acceptance of the germ theory of disease (germ theory). [1]
1856 – Louis Pasteur stated that microorganisms produce fermentation. 1858 – Charles R. Darwin and Alfred Wallace independently proposed a theory of biological evolution ("descent through modification") by means of natural selection. Only in later editions of his works did Darwin used the term "evolution."
Louis Pasteur was a pioneer in chemistry, microbiology, immunology and vaccinology. pictore/DigitalVision Vectors via Getty ImagesSome of the greatest scientific discoveries haven’t resulted in ...
The discovery of RNA in the particles was important because in 1928, Fred Griffith (c. 1879 –1941) provided the first evidence that its "cousin", DNA, formed genes. [18] In Pasteur's day, and for many years after his death, the word "virus" was used to describe any cause of infectious disease.
[49] [56] But, Pasteur discovered Pébrine and flacherie were separate diseases. Pasteur claimed bacteria within the silkworms' intestinal track caused flacherie. He then used a microscope to sort which eggs were infected and which were not. This was an effective way of discarding the diseased eggs so these worms would not enter the population.
1878 – Confirmation and popularization of the germ theory of disease (Louis Pasteur) 1880 – 81 Theory that bacterial virulence could be attenuated by culture in vitro and used as vaccines. Used to make chicken cholera and anthrax "vaccines" ( Louis Pasteur )
Pasteur's claim followed the German physician Rudolf Virchow's doctrine Omnis cellula e cellula ("all cells from cells"), [49] itself derived from the work of Robert Remak. [50] [38] After Pasteur's 1859 experiment, the term "spontaneous generation" fell out of favor. Experimentalists used a variety of terms for the study of the origin of life ...