Fecal carriage of extended-spectrum β-lactamases and AmpC-producing Escherichia coli in a Libyan community

Table 4 Characteristics of Escherichia coli bla _CTXM families- producing isolates in human fecal samples of Libyan children

Specimen #	Date of isolation	bla _CTXM	bla _TEM	bla _OXA	bla _SHV	Phylogenetic group	ST*	PFGE Pattern**	Antibiotic resistance profile
L1	2001	1	+	-	-	D	New	A	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, SXT, TE
L2			+	-	-				Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, SXT, TE
L3			+	-	-				Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, SXT, TE
L4			+	-	-			ND§	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, SXT, TE
L5			+	-	-			ND§	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, TE
L6			+	-	-	B2	12	C	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, SXT, TE
L7			+	-	2			C	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, SXT, TE
L8			-	-	-			B	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, SXT
L9			+	-	2			C1	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S,TE
L10		3	+	-	-	A	23	ND§	Amp, CF, CTX, CRO, CAZ, C, S,TE
L11		15	+	-	2	B2	127	ND§	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, SXT, TE
L12			+	1	-	B1	359	D	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, NA,CIP,S, SXT, TE
L13			+	1	-	B1	359	ND§	Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, NA,CIP,S, SXT, TE
L14			+	-	-	D	New		Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, SXT, TE
L15	2007		+	-	-	B1	155		Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, NA,CIP,S, SXT, TE
L16			+	-	-	D	38		Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, S, SXT, TE
L17			+	-	-	B1	46		Amp, SAM, AMC, CF, CTX, CRO, CAZ, C, NA,CIP,S, SXT, TE
L18			+	1	-	A	410		Amp, SAM, AMC, CF, CTX, CRO, CAZ, NA,CIP

*ST: Sequence type as analyzed by multi-locus sequence typing (MLST).
**PFGE : Pulse-Field gel electrophoresis.
§ND: Not done.
Amp, ampicillin; SAM, sulbactam-ampicillin; AMC, amikacin; CF, cephalothin; CTX, cefotaxime; CRO, ceftraxione; CAZ, ceftazidime; C, chloramphenicol; NA, nalidixic acid; CIP, ciprofloxacin; S, streptomycin; SXT, sulfamethoxazole/trimethoprim; TE, tetracycline.

ISSN: 1476-0711