Table 4.

Summary of quinolone resistance mutations and qnr genes found in isolates with ciprofloxacin MICs ≥0.12 mg/L

No.	Ciprofloxacin MIC (mg/L)	ESBL	qnrB	qnrS	gyrA mutation	parC mutation
50	0.12	no	no	no	nil	nil
61	0.12	no	no	no	nil	nil
125	0.12	no	no	no	nil	nil
172	0.12	no	no	no	nil	nil
68	0.25	no	no	no	nil	nil
93	0.25	no	no	no	nil	nil
134	0.25	no	no	no	nil	nil
46	0.25	no	yes	no	nil	nil
55	0.5	no	no	no	nil	nil
23	0.5	no	yes	no	nil	nil
34	0.5	no	no	no	TCC→TAC, Ser83→Tyr	nil
191	1	no	no	no	nil	nil
189	1	no	no	yes	nil	nil
154	1	no	no	no	TCC→TAC, Ser83→Tyr	nil
208	4	no	yes	no	TCC→TAC, Ser83→Tyr	nil
103	16	no	no	yes	TCC→TTC, Ser83→Phe	nil
128	16	no	yes	no	TCC→TTC, Ser83→Phe	nil
44	16	yes	no	no	TCC→TTC, Ser83→Phe	nil
35	32	no	no	no	TCC→ATC, Ser83→Phe	AGC→ATC, Ser80→Ile
9	64	yes	no	yes	TCC→TTC, Ser83→Phe	nil
45	64	no	yes	no	TCC→ATC, Ser83→Phe	GAA→AAA, Glu84→Lys
21	64	yes	no	no	TCC→ATC, Ser83→Phe	AGC→ATC, Ser80→Ile
173	64	no	no	no	TCC→ATC, Ser83→Phe	AGC→ATC, Ser80→Ile
104	>128	yes	yes	no	TCC→ATC, Ser83→Phe	AGC→ATC, Ser80→Ile