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Table 3 Ciprofloxacin MICs values of qnrA- and qnrB-positive quinolone-resistant isolates

From: Characterization of plasmid-mediated qnrA and qnrB genes among Enterobacteriaceae strains: quinolone resistance and ESBL production in Ismailia, Egypt

Bacterial strain

number

Resistance gene

MIC of CIP (μg/mL)

Total n = 56 (%)

E. coli

1

qnrA

46

 

2

qnrA

128

 

1

qnrA

256

7 (12.5%)

K. pneumoniae

3

qnrA

256

 

E. coli

3

qnrB

128

 

1

qnrB

256

 

K. pneumoniae

1

qnrB

256

6 (10.7%)

Enterobacter

1

qnrB

32

 
  1. MICs: minimal inhibitory concentrations