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Portrait of Robert Koch, German bacteriologist, who together with Louis Pasteur, is considered as the founder of modern medical bacteriology. Koch was born in 1843 and died in 1910. His techniques for cultivating bacteria both in liquid and solid media & his use of stains, enabled him to study the life cycles of bacteria in laboratory conditions. As a result he was able to isolate the specific bacteria responsible for certain diseases. The high point of his career was the identification in 1882 of the tubercle bacilli, cause of the dreaded tuberculosis. Koch was awarded the Nobel prize in 1905 for medicine or physiology.
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