TABLE 1.

Relative distributions of the genes for streptococcal pyrogenic exotoxins A and C and ability to express NADase among strains isolated from patients with invasive and non invasive disease from the NT and SWS regions of Australia

Characteristic	No. (%) of isolates from NT that were positive		P value for NT isolates	No. (%) of isolates from SWS that were positive		P value for SWS isolates
	Invasive (n = 37)	Noninvasive (n = 38)		Invasive (n = 26)	Noninvasive (n = 13)
speA	3 (8)	2 (5)	0.67	5 (19)	1 (8)	0.64
speC	7 (19)	11 (29)	0.31	13 (50)	7 (54)	0.82
NADase	15 (41)	19 (50)	0.41	19 (73)	11 (85)	0.69