Additional file 1 of Evolution of carbapenem resistance in klebsiella pneumoniae and escherichia coli carrying blaNDM−1 gene: imipenem exposure results in sustained resistance memory of strains in vitro

Additional files 1: Table S1. The resistance of 20 clinical isolates to 17 antibiotics. Additional files 2: Table S2. Transmission of drug resistance phenotype of imipenem exposed strains in subculture cells. Additional files 3: Fig. S1. The electropherogram map of blaNDM−1-pET28a (+) plasmid. Additional files 4: Fig. S2. The electropherogram map of blaNDM−1 gene amplified from blaNDM−1-pET28a (+) plasmid.