koch's postulates

koch's postulates
noun plural also koch's laws
Usage: usually capitalized K
: a statement of the steps required to establish a microorganism as the cause of a disease: (1) it must be found in all cases of the disease; (2) it must be isolated from the host and grown in pure culture; (3) it must reproduce the original disease when introduced into a susceptible host; (4) it must be found present in the experimental host so infected

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Koch's postulates /kohhs posˈtū-ləts/
plural noun
Criteria formulated by German bacteriologist Robert Koch (1843–1910) for establishing that a micro-organism is the cause of a disease

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Koch's postulates «kokhs»,
the four basic steps bacteriologists follow to establish that a certain bacterium causes a particular disease.
[< Robert Koch, 1843-1910, a German physician, who formulated the postulates]

Useful english dictionary. 2012.

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  • Postulates, Koch's — In 1890 the German physician and bacteriologist Robert Koch set out his celebrated criteria for judging whether a given bacteria is the cause of a given disease. Koch s criteria brought some much needed scientific clarity to what was then a very… …   Medical dictionary

  • Koch , (Heinrich Hermann) Robert — (1843–1910) German bacteriologist Born the son of a mining official in Klausthal, Germany, Koch studied medicine at the University of Göttingen where he was a pupil of Jacob Henle. After graduating in 1866 and serving in the Franco–Prussian War,… …   Scientists

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