Table 1. DNA sequence identities (%) of sdr genes between S. aureus isolates in Canada and sequenced S. aureus strains.

Strain	Ontario & Western Canada Isolates				Quebec & Eastern Canada Isolates
	sdrC(2001)*	sdrD(3209)	sdrE(2649)	sdrH(1233)	sdrC(1969)	sdrD(3209)	sdrE(2649)	sdrH(1299)
RF122	90.91	-	87.79	89.17	100.00	-	99.96	100.00
MRSA252	90.10	-	87.13	93.66	95.42	-	95.16	87.55
ST398	90.81	89.70	-	91.20	95.92	89.70	-	91.91
ED133	90.61	89.95	96.43	92.70	95.52	89.95	89.09	93.10
JKD6159	88.58	89.31	98.83	90.63	91.08	89.31	87.56	90.35
TCH130	99.15	99.84	96.70	99.36	90.81	99.84	86.72	89.32
MSSA476	94.99	93.68	96.32	89.84	91.12	93.68	88.56	86.05
MW2	94.94	93.62	96.32	96.80	91.07	93.62	88.56	91.18
ED98	95.53	99.60	97.63	97.71	88.94	99.60	88.19	90.80
N315, JH1, JH9, 04-02981	95.48	99.63	97.60	97.71	88.94	99.63	88.12	90.80
Mu50, Mu3	95.53	99.63	97.56	98.65	88.94	99.63	88.08	89.99
TW20	94.39	94.44	96.17	96.80	89.60	94.44	88.53	91.18
NCTC8325	94.39	94.32	-	96.72	89.60	94.32	-	91.10
COL	94.44	94.48	95.56	97.71	89.55	94.48	87.97	90.88
Newman	94.44	94.51	95.56	96.80	89.55	94.51	87.97	91.18
USA300_FRP3757USA300_TCH1516	94.39	94.44	95.63	97.16	89.50	94.44	88.04	90.36

*Nucleotide numbers of the A region and B repeats of sdrC, sdrD and sdrE and the full sequence of sdrH in bovine mastitis isolates.