[Table/Fig-2]:

Colistin susceptibility criteria / breakpoints [11,12].

Parameter	Sensitive	Intermediate Sensitive	Resistant
Zone Diameters by Kirby- Bauer’s Disk Diffusion method §	≥14 mm	13 mm	≤12 mm
MIC values by VITEK automated systems||	≤2 μg/mL	-	≥4 μg/mL

§ Galani et al., [12] ||according to CLSI guidelines 2015 [11]