Table 2.

Antibiotic interpretation for Enterococcus species.

On the WHO’s critically important antimicrobials list (WHO, 2012b)	Antibiotic disk	Concentration	Antibiotic interpretation
			E. faecalis (n = 6)				E. gallinarum (n = 2)
			Sensitive		Resistant		Sensitive		Resistant
			n	%	n	%	n	%	n	%
Penicillins
Critically important	Penicillin	10 μg	6	100	0	0	1	50	1	50
Critically important	Ampicillin	10 μg	5	83.3	1	16.7	1	50	1	50
Glycopeptides
Critically important	Vancomycin	30 μg	5	83.3	1	16.7	0	0	2	100
Macrolides
Critically important	Erythromycin	15 μg	2	33.3	4	66.7	0	0	2	100
Tetracyclines
Highly important	Tetracycline	30 μg	0	0	6	100	0	0	2	100
Fluoroquinolones
Critically important	Ciprofloxacin	5 μg	5	83.3	1	16.7	2	100	0	0
Nitrofurantoins
Important	Nitrofurantoin	300 μg	6	100	0	0	1	50	1	50
Phenicols
Highly important	Chloramphenicol	30 μg	5	83.3	1	16.7	0	0	2	100
Ansamycins
Critically important	Rifampicin	5 μg	2	33.3	4	66.7	2	100	0	0
Aminoglycosides
Critically important	Gentamicin	10 μg	6	100	0	0	1	50	1	50
Critically important	Streptomycin	10 μg	6	100	0	0	1	50	1	50