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Table 4 Frequency of different combinations of ARG among Enterococcus species

From: High incidence of virulence determinants, aminoglycoside and vancomycin resistance in enterococci isolated from hospitalized patients in Northwest Iran

No. of ARG ARG combinations No. (%) of ARGs in E. faecalis (n = 69) No. (%) of ARGs in E. faecium (n = 10) Total No. (%) (n = 79)
Without ARG 1 (1.4) 1 (1.2)
1 ARG ant(6′)Ia 5 (7.2) 16 (20.2)
ant(3′)-IIIa 7 (10.1) 2 (20)
aph(3′)-IIIa 2 (2.8)
2 ARGs aph(3′)-IIIa + ant(3′)-III 8 (11.5) 2 (20) 26 (32.9)
ant(6′)Ia + ant(3′)-IIIa 4 (5.7)
ant(6′)Ia + aph(3′)-IIIa 8 (11.5)
ant(3′)-IIIa + aac (6′)-Ie 1 (1.4)
ant(3′)-IIIa + aph(3′)-IIIa 2 (2.8)
ant(6′)Ia + aac (6′)-Ie 1 (1.4)
3 ARGs ant(3′)-IIIa + aph(2″)-Ic + ant(4′)Ia 1 (1.4) 22 (27.8)
ant(6′)Ia + ant(3′)-IIIa + aph(3′)-IIIa 10 (14.4) 2 (20)
ant(6′)Ia + aph(3′)-IIIa + aph(2″)-Ic 1 (1.4)
ant(3′)-IIIa + aph(3′)-IIIa + ant(4′)Ia 1 (1.4)
ant(3′)-IIIa + aph(3′)-IIIa + aph(2″)-Ic 1 (1.4)
ant(3′)-IIIa + aph(3′)-IIIa + aac (6′)-Ie 1 (1.4)
ant(6′)Ia + aac (6′)-Ie + aph(2″)-Ic 1 (1.4)
ant(6′)Ia + ant(3′)-IIIa + aph(2″)-lb 1 (1.4) 1 (10)
ant(6′)Ia + aph(3′)-IIIa + aac (6′)-Ie 1 (10)
ant(3′)-IIIa + aph(2″)-ld + aph(3′)-IIIa 1 (1.4)
4 ARGs ant(6′)Ia + ant(3′)-IIIa + aph(2″)-ld + aph(3′)-IIIa 2 (2.8) 1 (10) 12 (15.1)
ant(6′)Ia + ant(3′)-IIIa + aph(3′)-IIIa + aac (6′)-Ie 4 (5.7)
ant(6′)Ia + ant(3′)-IIIa + aph(2″)-lb + aph(3′)-IIIa 1 (1.4)
ant(3′)-IIIa + aph(2″)-ld + aph(3′)-IIIa + aph(2″)-Ic 1 (1.4)
ant(6′)Ia + ant(3′)-IIIa + aph(2″)-ld + aac (6′)-Ie 1 (1.4)
ant(6′)Ia + ant(3′)-IIIa + aph(3′)-IIIa + aph(2″)-Ic 1 (1.4)
ant(3′)-IIIa + aph(2″)-lb + aph(3′)-IIIa + ant(4′)Ia 1 (1.4)
5 ARGs ant(6′)Ia + ant(3′)-IIIa + aph(2″)-lb + aph(3′)-IIIa + aac (6′)-Ie 1 (1.4) 2 (2.5)
ant(6′)Ia + ant(3′)-IIIa + aph(2″)-lb + aph(2″)-ld + aph(3′)-IIIa 1 (10)