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Table 4 Percentage of resisting isolates to nalidixic acid, ofloxacin, and ciprofloxacin, among strains which have harbored just one type of qnr genes and/or qnr S and B

From: Frequency of quinolone resistance genes among extended-spectrum β-lactamase (ESBL)-producing Escherichia coli strains isolated from urinary tract infections

Antibiotics qnr B qnr A qnr S qnr S-B
21 (no) 10 (no) 41 (no) 21 (no)
Nalidixic acid (%) 33.33 60.00 73.17 100
Ofloxacin (%) 28.57 50.00 70.73* 95.23
Ciprofloxacin (%) 28.57 50.00 68.29* 95.23
NA, OF, and CIP (%) 28.57 50.00 65.85 95.23
  1. Abbreviations: R resistant, no number
  2. *P value < 0.05