Genomic Modification of TonB and Emergence of Small-Colony Phenotype in VIM- and NDM-Producing Escherichia coli following Cefiderocol Exposure In Vitro.

Abstract excerpt

Knowledge on resistance mechanisms toward cefiderocol, a novel siderophore-conjugated cephalosporin antibiotic, is still limited. Although the presence of New-Delhi metallo-β-lactamase has been demonstrated to facilitate the resistance development toward cefiderocol via siderophore receptor mutations in Enterobacter cloacae and Klebsiella pneumoniae, the impact of metallo-β-lactamases on facilitating such...

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