Koch's postulates

Koch's postulates definition - medical

Koch's postulates

plural noun
The series of conditions that must be met in order to establish a microorganism as the causative agent of a disease, namely: it must be present in all cases of the disease; inoculations of its pure cultures must produce the disease in susceptible animals; and from these it must again be isolated and propagated in pure cultures.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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