Characterization of Integrons and Antimicrobial Resistance in Escherichia coli Sequence Type 131 Isolates

Table 1

Phenotypic and genotypic characteristics of 22 integron-positive E. coli ST131 isolates.

Isolates	Ward	Source	Age	Sex	Genetic material in isolate with integron		Serotype	Phylogenetic group	Resistance proflies	Conjugation experiments
					Promoter	Gene cassette(s)
EC327	Urinary surgery	Urine	48	F	PcW	−^1	O25b	B2	SXT
EC431	Emergency surgery	Drain	78	F	PcW	−	O16	B2	CTX, CAZ, FEP, CI; P, LEV, ATM, SXT; CTX, CIP, LEV, SXT
EC455	Colorectal surgery	Drain	62	F	PcW	dfrA17-aadA5	O16	B2		+^2
EC485	Urinary surgery	Urine	60	M	PcW	aac(6′)-Ib-cr-cmlA5	O16	B2	−
EC541	Neurosurgery	Blood	69	M	PcW	dfrA17-aadA5	O25b	B2	CTX, SXT
EC549	Neurosurgery	Urine	39	F	PcW	dfrA17-aadA5	O25b	B2	CTX, CAZ, FEP, CIP, LEV, AMK, ATM, SXT
EC568	Hepatobiliary surgery	Blood	75	M	PcW	dfrA17-aadA5	O25b	B2	CTX, CAZ, FEP, CIP, LEV, AMK, ATM, SXT
EC570	Urinary surgery	Urine	51	F	PcW	dfrA17-aadA5	O25b	B2	CTX, FEP, CIP, LEV, AMK, ATM, SXT
EC578	Urinary surgery	Urine	68	M	PcW	dfrA17-aadA5	O16	D	CTX, FEP, CIP, LEV, SXT	+
EC668	Oncology	Urine	59	F	PcW	dfrA17-aadA5	O25b	B2	CTX, CIP, LEV, SXT	+
EC686	Cardiology	Urine	78	M	PcW	dfrA17-aadA5	O16	B2	CIP, LEV, SXT	+
EC771	Outpatient	Blood	61	F	PcW	-	O25b	B2	SXT
EC786	Nephrology	Blood	64	F	PcW	dfrA17-aadA5	O25b	B2	CTX, CAZ, FEP, CI; P, LEV, ATM, SXT	+
EC792	Colorectal surgery	Secretion	52	M	PcW	dfrA17-aadA5	O25b	B2	CTX, CAZ, FEP, CIP, LEV, ATM, SXT
EC913	Gastrointestinal surgery	Urine	52	F	PcW	dfrA17-aadA5	O25b	B2	CTX, CIP, LEV, SXT	+
EC934	Hematology	Urine	54	F	PcW	−	O25b	B2	SXT
EC935	Emergency surgery	Secretion	55	F	PcW	−	O25b	B2	SXT
EC978	Hematology	Blood	43	F	PcW	dfrA17-aadA5	O25b	B2	CTX, CAZ, FEP, CI; P, LEV, ATM, SXT	+
EC1044	Hematology	Urine	64	F	PcW	dfrA17-aadA5	O25b	B2	CTX, CAZ, FEP, CI; P, LEV, ATM, SXT	+
EC1065	Urinary surgery	Urine	56	M	PcW	dfrA17-aadA5	O25b	B2	SXT
EC1085	Oncology	Ascitic fluid	64	F	PcW	dfrA17-aadA5	O25b	B2	CTX, CAZ, FEP, CI; P, LEV, ATM, SXT	+
EC1151	Outpatient	Blood	82	M	PcW	dfrA17-aadA5	O25b	B2	CTX, FEP, CIP, LEV, ATM, SXT

F, female; M, male; CTX, cefotaxime; CAZ, ceftazidime; FEP, cefepime; CIP, ciprofloxacin; LEV, levofloxacin; AK, amikacin; IPM, imipenem; TZP, piperacillin-tazobartan; ATM, aztreonam; SXT, trimethoprim-sulfamethoxazole; ETP, ertapenem, ¹⁻: not detected, ²⁺: successfully transferred.