Fig. 3
From: Drug susceptibility testing of Nocardia spp. using the disk diffusion method
Distribution of Nocardia isolates excluding N. farcinica and N. cyriacigeorgica (n = 72) according to the inhibition diameter (mm) measured around the imipenem disk and their minimal inhibitory concentration (MIC) for imipenem determined by broth microdilution using Sensititre™ Myco RAPMYCOI after 72 h incubation. Shades of green: strains categorized as susceptible; orange: strains categorized as intermediate; shades of red: strains categorized as resistant according to Clinical Laboratory Standard Institute critical concentrations. Bold dotted line: critical inhibition diameter according to Youden index and the point closest to the upper left-hand corner of the ROC curve (ROC01) = 29 mm (inhibition diameter ≤ 29: imipenem I or R; inhibition diameter > 29: imipenem S)