FIGURE 6.

Minimum inhibitory concentrations (MICs) of isolates containing genetic variants known to confer resistance to different drugs tend to lie above the epidemiological cut-off value (ECOFF/ECV) on the UKMYC6 plate: a) isoniazid, b) rifampicin, c) ethambutol, d) moxifloxacin, e) levofloxacin, f) kanamycin, g) amikacin and h) ethionamide. The number of isolates lying above and below the ECOFF/ECV is annotated. The dashed line indicates the margin of a proposed “borderline” category for isoniazid, ethambutol and ethionamide. The same analysis has been repeated on the UKMYC5 dataset (supplementary figure S11) and can be reproduced online [21].