TABLE 1.

emm sequences of pharyngeal S. pyogenes isolated in Spain (1996 to 1999)

No. of isolates	emm type	No. (%) of isolates resistant to erythromycina collected in:			No. % of isolates susceptible to erythromycin collected in:
		1996-1997 (n = 145)	1998-1999 (n = 170)	Total (n = 315)	1996-1997 (n = 133)	1998-1999 (n = 166)	Total (n = 299)
144	4	72 (49.7)	57 (33.5)	129 (41.0)	8 (6.0)	7 (4.2)	15 (5.0)
75	st1815	42 (29.0)	23 (13.5)	65 (20.6)	8 (6.0)	2 (1.2)	10 (3.3)
67	12	15 (10.3)	22 (12.9)	37 (11.7)	19 (14.3)	11 (6.6)	30 (10.0)
39	75	2 (1.4)	35 (20.6)	37 (11.7)	1 (0.8)	1 (0.6)	2 (0.7)
38	1		1 (0.6)	1 (0.3)	11 (8.3)	26 (15.7)	37 (12.4)
34	9	1 (0.7)	5 (2.9)	6 (1.9)	8 (6.0)	20 (12.0)	28 (9.4)
34	3				11 (8.3)	23 (13.9)	34 (11.4)
25	28	3 (2.1)	3 (1.8)	6 (1.9)	6 (4.5)	13 (7.8)	19 (6.4)
24	6		9 (5.3)	9 (2.9)	8 (6.0)	7 (4.2)	15 (5.0)
22	22	1 (0.7)	8 (4.7)	9 (2.9)	3 (2.3)	10 (6.0)	13 (4.3)
17	st2002				14 (10.5)	3 (1.8)	17 (5.7)
16	2	5 (3.4)		5 (1.6)	6 (4.5)	5 (3.0)	11 (3.7)
16	44				6 (4.5)	10 (6.0)	16 (5.4)
12	11				8 (6.0)	4 (2.4)	12 (4.0)
10	77		6 (3.5)	6 (1.9)		4 (2.4)	4 (1.3)
8	78					8 (4.8)	8 (2.7)
6	13				5 (3.8)	1 (0.6)	6 (2.0)
5	50	1 (0.7)		1 (0.3)	4 (3.0)		4 (1.3)
3	73					3 (1.8)	3 (1.0)
2	67		1 (0.6)	1 (0.3)		1 (0.6)	1 (0.3)
2	87				2 (1.5)		2 (0.7)
2	19					2 (1.2)	2 (0.7)
2	66				2 (1.5)		2 (0.7)
2	8					2 (1.2)	2 (0.7)
2	41	2 (1.4)		2 (0.6)
2	fcrV	1 (0.7)		1 (0.3)	1 (0.8)		1 (0.3)
2	89				1 (0.8)	1 (0.6)	2 (0.7)
1	61				1 (0.6)	1 (0.3)
1	58					1 (0.6)	1 (0.3)
1	33				1 (0.8)		1 (0.3)

^aThe breakpoint for erythromycin was ≥1 μg/ml.