TABLE 1.

List of strains used in this study.

Species	Strain	Sequence type (ST)	Relevant antibiotic resistance genes
Klebsiella pneumoniae	NCTC 9633	3	blaSHV-1
	NCTC 13438	258	aadA2, aph(3’)-Ia, blaKPC-3, blaSHV-11, blaOXA-9, gyrA S83I, parC S80I, mphA, catA1, dfrA12
	MGH 78578	38	aadB, aph(3’)-Ic, aadA1, aac(6’)-Ib, blaSHV-11, blaSHV-12, blaTEM-1B, blaOXA-9, gyrA S83Y, cmlA1, catA1, tetD
	NCTC 13439	54	aacA4, aac(6’)Ib-cr, blaSHV-12, blaVIM-1, QnrS1
	NCTC 13368	489	aadB, blaSHV-18, blaOKP-B-7, blaOXA-2
Acinetobacter baumannii	UKA15	25	aac(3)-IIa, blaOXA-23, blaOXA-64, blaADC-25, gyrA S81L, parC S84L, tetB
	UKA2	2	aac(3)-Ia, blaOXA-83, blaTEM-1D, blaADC-25, gyrA S81L, parC S84L, tetB
	AYE	1	aadB, aac(3)-Ia, aph(3’)-Ic, blaADC-25, blaOXA-10, blaVEB-1, blaOXA-69, gyrA S81L, parC S84L, catA1, cmlA1, ARR-2, tetA, tetG, dfrA1, dfrA10
	ATCC 17978	ND	blaADC-25, blaOXA-180
	W1	1	aacA4, blaOXA-69, blaADC-25, aac(6’)Ib-cr, gyrA S81L, parC S84L
Pseudomonas aeruginosa	PAO1	549	aph(3’)-IIb, blaOXA-50, blaPDC-1, catB7
	GH56	395	aph(3’)-IIb, blaOXA-50, blaPDC, catB7
	GH12	235	aph(3’)-IIb, aph(3’)-VIa, aadA6, aac(6’)-I1, aac(6’)-31, blaOXA-2, blaOXA-488, blaPDC, blaVEB-1, catB7, gyrA T83I, parC S87L, tetA, tetG
	GH97	111	aph(3’)-IIb, blaOXA-50, blaPDC, catB7
	NCTC 13359	252	aph(3’)-IIb, blaOXA-50, blaPDC, catB7
	PA14	253	aph(3’)-IIb, blaOXA-488, blaPDC-34, catB

Sequence type (ST) is a measure of the relatedness of each isolate utilizing the variation in sequence of specific genes. ND = not defined.