Table 3.

List of all VMEs and MEs with RAST for each species/agent combination and incubation time and the corresponding reference categorization^a

Species	Isolate	Antimicrobial agent	Error	Incubation time (h)	RAST zone/ interpretationb			Reference		Standard disc diffusion discrepant from MIC	Agar manufacturer
					4 h	6 h	8 h	disc diffusion	MIC
E. coli	A	TZP	ME	4	6/R	16/ATU	19/ATU	—	S		BD BBL
		TZP	ME	4	6/R	16/ATU	17/ATU	—	S		Oxoid
		CTX	ME	4	6/R	19/S	21/S	—	S		BD BBL
		CTX	ME	4	6/R	20/S	19/S	—	S		Oxoid
		CAZ	ME	4	6/R	18/S	18/S	—	S		BD BBL
		CAZ	ME	4	6/R	18/S	19/S	—	S		Oxoid
	B	TZP	ME	4	6/R	19/ATU	19/ATU	—	S		BD BBL
		TZP	ME	4	6/R	18/ATU	19/ATU	—	S		Oxoid
		CTX	ME	4	6/R	20/S	19/S	—	S		BD BBL
		CTX	ME	4	6/R	19/S	20/S	—	S		Oxoid
		CAZ	ME	4	6/R	21/S	19/S	—	S		BD BBL
		CAZ	ME	4	6/R	19/S	19/S	—	S		Oxoid
	C	TZP	ME	4	12/R	15/ATU	15/ATU	—	S		BD BBL
	D	TZP	ME	4	6/R	16/ATU	17/ATU	—	S		Oxoid
	E	CTX	ME	4	10/R	19/S	21/S	—	S		BD BBL
	F	TOB	VME	4	14/S	14/ATU	14/ATU	—	R	I	BD BBL
K. pneumoniae	G	AMK	ME	4	12/R	13/ATU	13/S	—	S	I	Oxoid
	H	GEN	VME	8	13/ATU	13/ATU	14/S	—	R	I	BD BBL
P. aeruginosa	I	IPM	ME	6	—	6/R	19/S	—	S		BD BBL
		IPM	ME	6	—	6/R	18/S	—	S		Oxoid
	J	TZP	VME	6	—	17/S	15/ATU	—	R		BD BBL
S. aureus	K	NOR	ME	6	—	6/R	15/S	S	—		Oxoid
	L	NOR	VME	6	—	14/S	14/ATU	R	—		BD BBL
E. faecium	M	AMP	ME	6	—	6/R	9/S	—	S	R	BD BBL
		AMP	ME	6, 8	—	6/R	6/R	—	S	R	Oxoid
S. pneumoniae	N	SXT	ME	4	6/R	15/S	15/S	—	S		BD BBL
		SXT	ME	4	6/R	14/S	15/S	—	S		Oxoid
	O	SXT	ME	4, 6, 8	6/R	6/R	6/R	—	S	R	BD BBL
		SXT	ME	4, 6, 8	6/R	6/R	6/R	—	S	I	Oxoid
	P	NOR	VME	4, 6, 8	12/S	14/S	13/S	R	—		BD BBL
		NOR	VME	4, 6, 8	11/S	12/S	12/S	R	—		Oxoid
	Q	NOR	VME	6, 8	NG	14/S	13/S	R	—		BD BBL
		NOR	VME	6, 8	NG	13/S	13/S	R	—		Oxoid
	R	NOR	VME	8	NG	NG	13/S	R	—		BD BBL
		NOR	VME	8	NG	11/ATU	12/S	R	—		Oxoid

AMK, amikacin; AMP, ampicillin; CAZ, ceftazidime; CTX, cefotaxime; IPM, imipenem; GEN, gentamicin; NOR, norfloxacin; SXT, trimethoprim/sulfamethoxazole; TOB, tobramycin; TZP, piperacillin/tazobactam; NG, no growth; Oxoid, from Thermo Fisher Scientific; BD BBL, from BD. A dash in either of the ‘Reference’ columns indicates that method is not used as a reference.

^aA single isolate may show several errors and some errors are with both MH manufacturers.

^bErroneous interpretations are shown in bold.