Table 1. Primers used in this study.

Target	Primer	Sequence (5’to3’)	Product size (bp)	Reference
nuc	Forward	GCG ATT GAT GGT GAT ACG GTT	279	12
	Reverse	AGC CAA GCC TTG ACG AAC TAA AGC
vanA	Forward	ATG AAT AGA ATA AAA GTT GC	1032	15
	Reverse	TCA CCC CTT TAA CGC TAA TA
vanB	Forward	GTG ACA AAC CGG AGG CGA GGA	430	15
	Reverse	CCG CCA TCC TCC TGC AAA AAA
(ddl E. faecium)	Forward	CAGTGCATGTGCCATGGATA	429	16
	Reverse	ACTTCGGCTGGAATCTGCAT
(ddl E. faecalis)	Forward	CAGAAGTGAAGAGCACGATG	688	16
	Reverse	AGGTAAAGTCGTACGGACAT