- Resistant, dark gray; intermediate, medium gray; sensitive, light gray
- aAntibiotic classes: class 1, aminoglycosides; class 2, carbapenems; class 3, fluoroquinolones; class 4, extended-spectrum cephalosporins; class 5, aminopenicillins/beta-lactamase inhibitor; class 6, glycylcyclines; and class 7, folic acid synthesis inhibitor
- bR number of resistant isolates