Differences in distribution of MLS antibiotics resistance genes in clinical isolates of staphylococci belonging to species: S. epidermidis, S. hominis, S. haemolyticus, S. simulans and S. warneri

Table 2 Phenotypic manifestation and genes encoding the MLS_B resistance as well as the methicillin resistance in tested isolates belonging to the species: S. epidermidis, S. hominis, S. haemolyticus, S. warneri and S. simulans

Resistance genes	Phenotype (No. of isolates)	No. of isolates/No. of isolates with mecA gene
Resistance genes	Phenotype (No. of isolates)	S. epidermidis	S. hominis	S. haemolyticus	S. warneri	S. simulans
erm(A)	cMLS_B(1)	1/1
	iMLS_B(0)
	MS_B(0)
erm(C)	cMLS_B(20)	6/6	8/8		1/1	5/3^a
	iMLS_B(3)	1/1			1/1	1/0
	MS_B(3)	3/3
erm(A),erm(C)	cMLS_B(2)	2/2
	iMLS_B(0)
	MS_B(0)
erm(C),msr(A)	cMLS_B(2)			1/0		1/1
	iMLS_B(2)				1/1	1/1^a
	MS_B(0)
erm(C),msr(A),msr(B)	cMLS_B(1)				1/1
	iMLS_B(0)
	MS_B(0)
erm(C),msr(A),mph(C)	cMLS_B(2)			2/2
	iMLS_B(0)
	MS_B(0)
erm(C),mph(C)	cMLS_B(1)		1/1
	iMLS_B(0)
	MS_B(0)
erm(C),lnu(A)	cMLS_B(1)		1/1
	iMLS_B(1)		1/1
	MS_B(0)
erm(C),msr(A),lnu(A)	cMLS_B(1)		1/1
	iMLS_B(0)
	MS_B(0)
erm(C),msr(A),msr(B),lnu(A)	cMLS_B(1)		1/1
	iMLS_B(0)
	MS_B(0)
erm(C),msr(A),mph(C),lnu(A)	cMLS_B(2)		1/1	1/1
	iMLS_B(0)
	MS_B(0)
erm(C),msr(A),msr(B),mph(C)	kMLS_B(7)		1/1	6/6
	iMLS_B(1)		1/1
	MS_B(0)
erm(C),msr(B),mph(C)	cMLS_B(1)			1/1
	iMLS_B(0)
	MS_B(0)
erm(A),msr(B),mph(C)	cMLS_B(1)		1/1
	iMLS_B(0)
	MS_B(0)
msr(A)	cMLS_B(2)			2/1
	iMLS_B(1)				1/0
	MS_B(0)
msr(A),msr(B)	cMLS_B(0)
	iMLS_B(0)
	MS_B(2)				2/0
msr(A),msr(B),mph(C)	cMLS_B(3)			3/2
	iMLS_B(0)
	MS_B(8)	2/2		3/2	3/2^a
msr(A),msr(B),mph(C),lnu(A)	cMLS_B(1)
	iMLS_B(0)
	MS_B(1)			1/1
msr(A),mph(C)	cMLS_B(2)			2/2^a
	iMLS_B(1)		1/1
	MS_B(1)				1/0
mph(C),lnu(A)	cMLS_B(1)		1/1
	iMLS_B(0)
	MS_B(0)
mph(C)	cMLS_B(0)
	iMLS_B(0)
	MS_B(2)			1/1^a	1/0

^aisolates harbor the mecA gene without phenotypic resistance (S. haemolyticus: one isolate with msr(A),mph(C) and one isolate with mph(C); S. warneri: one isolate with msr(A),msr(B),mph(C); S. simulans: two isolates with erm(c) and one isolates with erm(C),msr(A))

ISSN: 1471-2180