Koch's postulates
(koks pos\'tu-leīts)
A set of rules for proving that a microorganism causes a particular disease.

Microbiology. . 2009.

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  • Koch's postulates — are four criteria designed to establish a causal relationship between a causative microbe and a disease. The postulates were formulated by Robert Koch and Friedrich Loeffler in 1884 and refined and published by Koch in 1890. Koch applied the… …   Wikipedia

  • Koch's postulates — 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'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… …   Useful english dictionary

  • Koch&’s postulates — The criteria, first advanced by Robert Koch, by which the causative agent of a disease can be unambiguously identified. For an organism to be accepted as the causative agent it must be (i) present in all cases, (ii) isolatable in pure culture,… …   Dictionary of molecular biology

  • Molecular Koch's postulates — are a set of experimental criteria that must be satisfied to show that a gene found in a pathogenic microorganism encodes a product that contributes to the disease caused by the pathogen. Genes that satisfy molecular Koch s postulates are often… …   Wikipedia

  • Koch's bacillus — kōks , käch əz or Koch bacillus kōk , käch n a bacillus of the genus Mycobacterium (M. tuberculosis) that causes human tuberculosis Koch kȯk (Heinrich Hermann) Robert (1843 1910) German bacteriologist. Koch is usually hailed as the founder of… …   Medical dictionary

  • 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's laws — noun plural see koch s postulates …   Useful english dictionary

  • Witebsky's postulates — are a series of criteria developed by Ernst Witebsky used to determine if a condition could be considered autoimmune.cite journal |author=van Gaalen F, Ioan Facsinay A, Huizinga TW, Toes RE |title=The devil in the details: the emerging role of… …   Wikipedia

  • Koch (surname) — Koch (pronounced in German, although it is often pronounced differently in other countries) is a German surname meaning cook and may refer to: * Bill Koch (skier), cross country skier * Billy Koch, Major league baseball relief pitcher * Bobby… …   Wikipedia

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