Incidence of Extended-Spectrum-beta-Lactamase-Producing Escherichia coli and Klebsiella pneumoniae Isolates That Test Susceptible to Cephalosporins and Aztreonam by the Revised CLSI Breakpoints
J Clin Microbiol
The incidence of aztreonam and cephalosporin susceptibility, determined using the revised CLSI breakpoints, for extendedspectrum-beta-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae isolates was evaluated. Our analysis showed that results for aztreonam and/or> 1 cephalosporin were reported as susceptible or intermediate for 89.2% of ESBLproducing E coli isolates (569/638 isolates) and 67.7% of ESBL-producing K. pneumoniae isolates (155/229 isolates).
Faculty, Northwell Researcher
School of Medicine; Northwell Health
Occupational Medicine, Epidemiology and Prevention
Pathology and Laboratory Medicine; Molecular Medicine