Koch's postulates

[′kōks ′päs·chə·ləts] (microbiology) A set of laws elucidated by Robert Koch: the microorganism identified as the etiologic agent must be present in every case of the disease; the etiologic agent must be isolated and cultivated in pure culture; the organism must produce the disease when inoculated in pure culture into susceptible animals; a microorganism must be observed in and recovered from the experimentally diseased animal. Also known as law of specificity of bacteria.

Koch's postulates

A series of 4 conditions that must be met to establish an infectious agent as the cause of a particular disease or condition. See Molecular Koch's postulates. Koch's postulates 1. The agent must be present in all cases of the disease .2. The agent must be isolated from someone with the disease and grown in pure culture .3. Inoculation into a susceptible organism of the agent–from a pure culture—must produce the disease .4. The agent must be recovered from the infected–inoculated organism and grown again in culture
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Koch's postulates

A set of criteria to be obeyed before it is established that a particular organism causes a particular disease. The organism must be present in every case and must be isolated, cultured and identified; it must produce the disease when a pure culture is given to susceptible animals; and it must be recoverable from the diseased animal. (Robert Koch, 1843–1910, German bacteriologist)

单词	koch's postulates
释义	Koch's postulates Koch's postulates [′kōks ′päs·chə·ləts] (microbiology) A set of laws elucidated by Robert Koch: the microorganism identified as the etiologic agent must be present in every case of the disease; the etiologic agent must be isolated and cultivated in pure culture; the organism must produce the disease when inoculated in pure culture into susceptible animals; a microorganism must be observed in and recovered from the experimentally diseased animal. Also known as law of specificity of bacteria. Koch's postulates Koch's postulates A series of 4 conditions that must be met to establish an infectious agent as the cause of a particular disease or condition. See Molecular Koch's postulates. Koch's postulates 1. The agent must be present in all cases of the disease .2. The agent must be isolated from someone with the disease and grown in pure culture .3. Inoculation into a susceptible organism of the agent–from a pure culture—must produce the disease .4. The agent must be recovered from the infected–inoculated organism and grown again in culture . Koch's postulates A set of criteria to be obeyed before it is established that a particular organism causes a particular disease. The organism must be present in every case and must be isolated, cultured and identified; it must produce the disease when a pure culture is given to susceptible animals; and it must be recoverable from the diseased animal. (Robert Koch, 1843–1910, German bacteriologist)
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