Table 3.

Virulence-associated markers of S. aureus from CRS cases and controls.

	CRS Patient Isolates, Number	CRS Isolates, Percent	Control Isolates, Number	Control Isolates, Percent
Species markers (gapA, katA, coA, nuc, spa, sbi)	51	100.0	49	100.0
agr-group I	33	64.7	32	65.3
agr-group II	8	15.7	6	12.2
agr-group III	9	17.6	11	22.4
agr-group IV	1	2.0	1	2.0
hld	51	100.0	49	100.0
tst1	7	13.7	12	24.5
sea	4	7.8	2	4.1
sea (N315) = sep	8	15.7	7	14.3
seb	1	2.0	1	2.0
sec, sel	7	13.7	4	8.2
sed	1	2.0	0	0.0
see	0	0.0	0	0.0
seh	2	3.9	5	10.2
sej	1	2.0	0	0.0
sek, seq	0	0.0	0	0.0
ser	1	2.0	0	0.0
egc genes (seg, sei, selm, seln, selo, selu)	27	52.9	27	55.1
ORF CM14	0	0.0	1	2.0
lukF/S-hlg	51	100.0	49	100.0
lukF/S-PV	0	0.0	0	0.0
lukF-PV (P83)/lukM	1	2.0	0	0.0
lukD	23	45.1	23	46.9
lukE	24	47.1	22	44.9
lukX/Y	51	100.0	49	100.0
hla	50	98.0	49	100.0
sak	39	76.5	35	71.4
chp	32	62.7	28	57.1
scn	49	96.1	43	87.8
etA	1	2.0	0	0.0
etB	0	0.0	0	0.0
etD	0	0.0	3	6.1
edinA, edinC	0	0.0	0	0.0
edinB	0	0.0	3	6.1
ACME	0	0.0	0	0.0
Capsule type 5	11	21.6	18	36.7
Capsule type 8	40	78.4	31	63.3
cna	29	56.9	22	44.9
sasG	15	29.4	15	30.6