Characteristics of glycopeptide-resistant Staphylococcus aureus strains isolated from inpatients of three teaching hospitals in Warsaw, Poland

Table 2 Phenotypic and genotypic characteristics of 11 clinical VRSA isolates (VRSA/TSSA – 2 strains and VRSA/TRSA – 9 strains)

Nr of strain	Year of isolation	Source¹	MIC_{VAN/ TEI} ² (mg/L)	SCC mec type³	MLST⁴		Other resistance genes⁷	Presumable clone
Nr of strain	Year of isolation	Source¹	MIC_{VAN/ TEI} ² (mg/L)	SCC mec type³	ST⁵	CC⁶	Other resistance genes⁷	Presumable clone
MRSA-27	2003	H-2	4/4	IA	ST247	CC8	1, 2, 3, 4	Iberian
MRSA-31	2005	H-2	4/8	IA	ST247	CC8	1, 2, 3, 4	Iberian
MRSA-34	2005	H-3	4/16	IA	ST247	CC8	1, 3, 4	Iberian
MRSA-35	2005	H-3	4/16	IA	ST247	CC8	1, 3, 4	Iberian
MRSA-37	2005	H-3	4/16	IA	ST247	CC8	1, 3, 4	Iberian
MRSA-23	2003	H-2	4/16	III	ST241	CC8	1, 2, 3, 4, 5	Finland-UK
MRSA-43	2005	H-1	8/8	III	ST241	CC8	1, 3, 5	Finland-UK
MRSA-44	2005	H-1	4/8	III	ST241	CC8	1, 3, 5	Finland-UK
MRSA-45	2005	H-1	4/4	III	ST241	CC8	1, 3, 5	Finland-UK
MRSA-40	2005	H-1	4/2	IV	ST1	CC1	1	UD⁸
MRSA-22	1996	H-1	8/1	IV	ST30	CC30	1, 3, 4, 5	UD⁸

Legend: ¹Source of strains: H-1, H-2, H-3, hospital number 1, 2, 3; ²VAN/TEI Vancomycin/teicoplanin; ³SCCmec type Staphylococcal chromosome cassettes mec type; ⁴MLST Multilocus sequence typing; ⁵ST Sequence type; ⁶CC Clonal complex; ⁷Other resistance genes: 1, ermA; 2, ermC; 3, aacA-aphD; 4, aadD; 5, aph(3”)-IIIa; ⁸ UD, undefined

ISSN: 2047-2994