Table 4.
Frequency of antimicrobials resistance determinants in epidemic clonal lineages of the CNSAb isolates.
| ICa (No.) | Ambler classification No. (%) |
ISAba upstream beta-lactamase encoding genes No. (%) |
Class 1 integron No. (%) | Class 1 integron typesb No. (%) |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Class A |
Class D |
Co-existence of Class D |
||||||||||||||
| blaPER | blaVEB | blaOXA-23-like | blaOXA-40-like | blaOXA-23-40-like | blaOXA-23-58-like | ISAba1-blaOXA-23-like | ISAba1-blaOXA- 51-like | ISAba1-blaADC | 1 | 2 | 3 | 4 | 5 | 6 | ||
| IC-I (13) | 4 (31) | 3 (23) | 13 (100) | 2 (15) | 3 (23) | 1 (8) | 4 (31) | 5 (39) | 13 (100) | 9 (69) | - | 6 (46) | - | 2 (15) | 1 (8) | - |
| IC-II (25) | 10 (40) | 4 (16) | 17 (68) | 2 (8) | 1 (4) | 0 | 7 (28) | 7 (28) | 24 (96) | 19 (76) | 1 (4) | 8 (32) | - | 3 (12) | 4 (16) | 3 (12) |
| V (31) | 24 (77) | 6 (19) | 24 (77) | 5 (16) | 2 (6) | 1 (3) | 18 (58) | 6 (19) | 30 (97) | 30 (97) | 6 (19) | 9 (29) | 2 (6) | 4 (13) | 5 (16) | 4 (13) |
| Total (69) | 48 (69) | 13 (19) | 54 (78) | 9 (13) | 6 (9) | 2 (3) | 29 (42) | 18 (26) | 67 (97) | 58 (84) | 7 (10) | 23 (33) | 2 (6) | 9 (13) | 10 (14) | 7 (10) |
aAbbreviations: IC, international clone; V, variants of IC.
bType 1, orfI-aadA1; Type 2, aacA4-catB8-aadA1; Type 3, dfrXII-orfF-aadA2; Type 4, aacC1-orfX-orfX’-aadA1; Type 5, arr3-aacA4; Type 6, dfrVII.