Table A5.

Phenotypic resistance of the Klebsiella strains. MIC = minimum inhibitory concentration. ESBL = signal in phenotypic testing for extended-spectrum beta-lactamases.

Sample ID	ESBL	Ampicillin		Ampicillin/Sulbactam		Piperacillin/Tazobactam		Cefuroxime		Cefuroxime Axetil		Cefpodoxime		Cefotaxime		Ceftrazidime
		MIC	Interpretation	MIC	Interpretation	MIC	Interpretation	MIC	Interpretation	MIC	Interpretation	MIC	Interpretation	MIC	Interpretation	MIC	Interpretation
44	negative	≥32	R	16	R	≤4	S	4	I	4	I	≤0.25	S	≤1	S	≤1	S
60	negative	≥32	R	16	R	≤4	S	≤1	I	≤1	S	≤0.25	S	≤1	S	≤1	S
73	positive	≥32	R	≥32	R	≥128	R	≥64	R	≥64	R	≥8	R	≥64	R	8	R
100	positive	≥32	R	≥32	R	≥128	R	≥64	R	≥64	R	≥8	R	≥64	R	16	R
102	negative	≥32	R	≤2	I	8	S	8	I	8	I	≤0.25	S	≤1	S	≤1	S
124	negative	≥32	R	≤2	I	≤4	S	2	I	2	I	≤0.25	S	≤1	S	≤1	S
146	negative	≥32	R	≤2	I	8	S	2	I	2	I	≤0.25	S	≤1	S	≤1	S
177	positive	≥32	R	≥32	R	≥128	R	2	I	2	S	≤0.25	S	≤1	S	≤1	I
181	negative	≥32	R	≤2	I	≤4	S	2	I	2	I	≤0.25	S	≤1	S	≤1	S
184	negative	16	R	≤2	I	≤4	S	2	I	2	S	≤0.25	S	≤1	S	≤1	S
199	positive	≥32	R	≥32	R	8	R	≥64	R	≥64	R	≥8	R	≥64	R	16	R
214	negative	≥32	R	≤2	I	≤4	S	≤1	I	≤1	S	≤0.25	S	≤1	S	≤1	S
217	negative	≥32	R	≥32	R	≥128	R	4	I	4	I	≤0.25	S	≤1	S	≤1	S
220	negative	≥32	R	≤2	I	≤4	S	4	I	4	I	≤0.25	S	≤1	S	≤1	S
234	negative	≥32	R	≤2	I	≤4	S	2	I	2	I	≤0.25	S	≤1	S	≤1	S
240	negative	≥32	R	≤2	I	≤4	S	≤1	I	≤1	S	≤0.25	S	≤1	S	≤1	S
248	negative	≥32	R	≤2	I	≤4	S	2	I	2	I	≤0.25	S	≤1	S	≤1	S
252	negative	≥32	R	16	R	≤4	S	2	I	2	I	≤0.25	S	≤1	S	≤1	S
267	positive	≥32	R	≥32	R	32	R	≥64	R	≥64	R	≥8	R	≥64	R	16	R
277	negative	≥32	R	≥32	R	64	R	2	I	2	I	≤0.25	S	≤1	S	≤1	S
279	negative	≥32	R	≤2	I	≤4	S	2	I	2	I	≤0.25	S	≤1	S	≤1	S