Portrait print of Robert Koch (1843-1910) microbiologist, Germany, 1895-1910
This is a print of a photograph of the celebrated German bacteriologist, Robert Koch (1843-1910). The original photograph was taken in Berlin during the latter part of Koch’s life. In 1882, Robert Koch made what is considered to be one of his most famous discoveries when he identified the bacteria that cause tuberculosis. Koch also helped develop and verify the germ theory of disease.
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Pictorial works produced by transferring images by means of a matrix such as a plate, block, or screen, using any of various printing processes. When emphasizing the individual printed image, use "impressions." Avoid the controversial expression "original prints," except in reference to discussions of the expression's use. If prints are neither "reproductive prints" nor "popular prints," use just "prints."
An infectious disease that is caused by a bacterium first identified by Robert Koch in 1882. The disease usually affects the lungs first, and is accompanied by a chronic cough.
Glossary: germ theory
The theory that germs cause disease, often by infection through the air. The germ theory was formally proven by Robert Koch in 1875.