Fig. 2

Comprehensive phenotypic antibiotic susceptibility testing of all E. coli isolates to 18 antibiotics from 11 classes tested in this study. Breakpoints were interpreted using CLSI guidelines and S (susceptible), I (intermediate), and R (resistant) classifications are labeled for each antibiotic/isolate: red, yellow, and gray, respectively. Interpretations are mapped onto the MST from Fig. 1. AMK amikacin, GEN gentamicin, TOB tobramycin, AMP ampicillin, AMC amoxicillin-clavulanic acid, TZP piperacillin-tazobactam, CFZ cefazolin, FEP cefepime, CAZ ceftazidime, CRO ceftriaxone, ETP ertapenem, IPM imipenem, MEM meropenem, ATM aztreonam, CIP ciprofloxacin, LVX levofloxacin, SXT trimethoprim-sulfamethoxazole, TET tetracycline