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Table 2 Median minimum inhibitory concentrations (MICs) of ciprofloxacin for the 53 Enterobacteriaceae isolates and the presence of qnrS gene in the isolates

From: Contribution of target alteration, protection and efflux pump in achieving high ciprofloxacin resistance in Enterobacteriaceae

Isolates Source ID qnrS MIC (μg/mL)
Escherichia spp. UTI E8, E23, E34 + 512
E29, E42 + 32
E36, E37, E40 128
E41, G3 + 128
E56 + 8
E58 + 4
G2 + 128
G4 + 256
DMCH 28N + 256
26N + 512
SSMCH CR1, CR2, CR4 + 512
CR6 + 64
NCX9, MCX14 + 256
C6, C84 64
C79 32
C49 512
Klebsiella spp. SSMCH NCX6, MCX10 + 512
  E33 + 256
  C1 128
  C67 512
Enterobacter spp. SSMCH MCX4 + 4
  MCX5 + 512
  MCX2 + 32
  MCX3 + 8
  MCX1, MCX6, NCX4 + 256
Salmonella spp. Poultry 36, 44, 45, 49, 54, 81, 84, 94, 60 16
58, 68 32
74 + 256
77 + 512
18 64
20 128
  1. Italics isolates were selected for revealing CIP resistance mechanisms