TABLE 4.

Transfer frequency of gentamicin and vancomycin resistance of VRE strain harboring each type of gentamicin resistance plasmid

Type of Gmr plasmid harbored in VRE donor strain	Donor	Recipient	No. of transconjugants/donor cell
			Gmr		Vmr
			Broth mating	Filter mating	Broth mating	Filter mating
A	VRE200	E. faeciumBM4105RF	3 × 10−5	3 × 10−4	<1 × 10−7	5 × 10−8
	VRE210	E. faeciumBM4105RF	1 × 10−5	1 × 10−3	<1 × 10−7	7 × 10−7
	VRE253	E. faeciumBM4105RF	1 × 10−5	2 × 10−4	<1 × 10−7	2 × 10−8
B	VRE247	E. faeciumBM4105RF	5 × 10−5	2 × 10−4	<1 × 10−7	3 × 10−8
	VRE411	E. faeciumBM4105RF	1 × 10−5	1 × 10−3	<1 × 10−7	4 × 10−5
	VRE445	E. faeciumBM4105RF	1 × 10−4	2 × 10−1	<1 × 10−7	6 × 10−5
C	VRE566	E. faeciumBM4105RF	1 × 10−5	3 × 10−2	<1 × 10−7	5 × 10−6
D	VRE700	E. faeciumBM4105RF	2 × 10−5	2 × 10−4	<1 × 10−7	7 × 10−7
E	VRE120	E. faeciumBM4105RF	1 × 10−5	4 × 10−4	<1 × 10−7	2 × 10−6
	E. faecium BM4105SS(pMG1)	E. faeciumBM4105RF	7 × 10−4	1 × 100	NTa	NT

^aNT, not tested.