Table 4.

The number of isolates with genes for erythromycin resistance collected annually from 2010 to 2012, and the types of emm genotype detected

	2010			2011			2012			Total
	N*	Genotype	n†	N*	Genotype	n†	N*	Genotype	n†
mefA	31			53			54			138
		emm1	29		emm1	50		emm1	53
		emm4	2		emm4	1		emm12	1
					emm12	2
ermA	1			0			0			1
		emm58	1
ermB	3			7			11			21
		emm1	1		emm1	1		emm12	5
		emm12	1		emm12	2		emm28	5
		emm28	1		emm28	4		emm75	1
Total resistant	35 (60·3%)			60 (67·4%)			65 (63·7%)			160 (64·3%)
Sensitive	23			29			37			89
Total	58			89			102			249

^*Values indicate the number of isolates with resistance genes collected in each year.

^†Values indicate the number of isolates with resistance gene collected for every emm genotype.