Plasmid-mediated colistin resistance gene mcr-1 generally confers low-level resistance. The purpose of this study was to investigate the impact of mcr-1 on the development of high-level colistin resistance (HLCR) in Klebsiella pneumoniae and Escherichia coli. In this study. mcr-1-negative K. https://www.roneverhart.com/Toshiba-MG09-MG09ACA18TE-18TB-7-2K-RPM-SATA-6Gb-s-512e-3-5in-Refurbished-HDD/