Antibiotic susceptibility and resistome of the carbapenem-resistant E. coli and K. pneumoniae strains.Abbreviation: ATM, aztreonam; AVI: Avibactam; ATM-AVI: aztreonam/avibactam; CAZ, ceftazidime; CAZ-AVI, ceftazidime/avibactam; MEM, meropenem; ESBL, Extended-spectrum β-lactamase. Antibiotic susceptibility testing was performed using agar dilution method. Data were interpreted using the Clinical and Laboratory Standards Institute guidelines M100 28th ed. The orchid and red color indicate the absence and presence of antimicrobial resistance genes, respectively. The very light green, light green, green, light blue indidate β-lactamses belonging to Non-ESBLs, ESBLs, AmpC, and carbapenemases. The blue indicates colisin-resistant enzyme MCR-1.