- The grey zone represents the tested concentration range of each antimicrobial provided in the BOPO6F plate
- Susceptibility and resistance breakpoints are indicated by double vertical (sensitive) and single vertical (resistant) lines according to the guidelines of each reference
- aMIC50 and MIC90, concentrations at which the growth of 50 and 90%, respectively, of the isolates is inhibited
- bS susceptible, I intermediate, R resistant
- cND not determined
- dMIC breakpoints applied were those recommended by the Clinical and Laboratory Standards Institute (CLSI); trimethoprim/sulfamethoxazole interpretation was based on a previous study [25]