Figure 2.
Ridge plot of Etest MICs for 172 E. coli strains grouped by genotype. The x-axis indicates MICs in mg/L. The left-hand y-axis indicates genotypes of strains. The right-hand y-axis indicates number of counts for each MIC; counts are scaled for each Etest to enhance visibility. R, resistant; S, susceptible. aMIC cut-off adapted from EUCAST guideline on detection of resistance mechanisms v2.0. bMIC breakpoints according to EUCAST clinical breakpoints for bacteria v.9.0. This figure appears in colour in the online version of JAC and in black and white in the print version of JAC.