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The effectiveness of an antibiotic
against a bacterium is closely related to the concept of minimal inhibitory
concentration (MIC). The MIC is the lowest concentration of an antibiotic that
prevents growth of a particular pathogen. The minimal lethal concentration (MLC)
is the lowest antibiotic concentration that kills the pathogen. A bacterium is
defined as dead if it does not grow when inoculated into culture medium that
would normally support its growth.

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