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Etest, Page 1 of 2
< Previous page Next page > /docserver/preview/fulltext/10.1128/9781555818814/9781555818814_Chap5.3-1.gif /docserver/preview/fulltext/10.1128/9781555818814/9781555818814_Chap5.3-2.gifAbstract:
A standardized inoculum of bacteria is swabbed onto the surface of a Mueller-Hinton agar (MHA) plate. Etest strips containing a continuous gradient of antimicrobial concentrations are placed on the agar surface. After overnight incubation, an elliptical zone of inhibition forms as the antimicrobial agent inhibits growth. The MIC is read where growth intersects the