Figure 1.
Number of retrospectively analysed non-replicate NDM-1-producing Klebsiella pneumoniae isolates by month of detection from a tertiary care hospital outbreak in Florence, Italy, January 2021–June 2022 (n = 52 isolates)
FDC R: cefiderocol-resistant Klebsiella pneumoniae isolates; FDC R CirAY253CfsTer5: cefiderocol-resistant, CirAY253CfsTer5-positive Klebsiella pneumoniae isolates; FDC S: cefiderocol-susceptible Klebsiella pneumoniae isolates.