Table 1.
Characterization of 135 Strains and the Results of the Modified Hodge Test and Triton-Modified Hodge Test
| Groups (N) | MIC Range (mg/L) | KB (mm) | Carbapenemase Genotypes (N) | MHT (N) | THT (N) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Imipenem | Meropenem | L = 0 | 0 < L < 3mm | L ≥3mm | Positive (L>0) Rate (%) | L = 0 | 0 < L < 3mm | L ≥3mm | Positive (L>0) Rate (%) | ||
| Carbapenem resistant isolates (83) | ≥16 | 6 | OXA-51+ISAba1/OXA-23+IMP-4 (2) | - | 1 | 1 | 59.03 | - | - | 2 | 100 |
| ≥16 | 6 | OXA-51+ISAba1/OXA-23+OXA-24 (2) | - | 1 | 1 | - | - | 2 | |||
| ≥16 | 6 | OXA-51+ISAba1/OXA-23+OXA-58 (1) | - | - | 1 | - | - | 1 | |||
| ≥16 | 6 | OXA-51+ISAba1/OXA-23+OXA-58+NDM (1) | - | 1 | - | - | - | 1 | |||
| ≥16 | 6–12 | OXA-51+ISAba1/OXA-23 (77) | 34 | 32 | 11 | - | - | 77 | |||
| Carbapenem sensitive isolates (52) | ≤1 | 24–32 | OXA-51 (52) | 52 | - | - | 0 | 52 | - | - | 0 |
Abbreviations: MHT, modified Hodge test; THT, Triton-modified Hodge test; N, number; KB, Kirby-Bauer method; L, length of E. coli ATCC25922 enhanced growth.