Table 2.

Summary of the bacterial strains collected in this study.

	No. of Isolates
	Isolation Year			Total
	1991–1993	2002–2003	2013–2014
Enterococcus species	95	26	149	270
E. faecalis	82	14	30	126
E. faecium	10	12	117	139
Others	3 (E. hirae)	0	2 (E. raffinosus)	5
Positive for ermB+, aph3′-IIIa+, aadE+	54	11	63	128
MES structures
MESPM1-like	2 (E. faecalis)	0	0	2
MES6272-2-like	0	1 (E. faecium)	10 (E. faecium)	11