Table 4.
Test of liquid screening cultivation media supplemented with meropenem (1 mg/L) and NaHCO3 (50 mmol/L) after 18 h cultivation at 35 °C
| Isolate | A600 | |
|---|---|---|
| without NaHCO3 | with NaHCO3 | |
| ATCC25922 | 0.079 | 0.054 |
| OXA-48-type producers | ||
| OXA_N1 | 0.353 | 0.851 |
| OXA_N2 | 0.129 | 1.000 |
| OXA_N3 | 0.950 | 1.100 |
| OXA_N4 | 0.926 | 1.050 |
| OXA_N5 | 0.104 | 1.050 |
| OXA_N6 | 0.079 | 0.751 |
| OXA_C3 | 0.029 | 1.000 |
| OXA_N9 | 0.751 | 1.100 |
| Other carbapenemase-producing isolates | ||
| KPC_C1 | 0.701 | 1.150 |
| KPC_C2 | 0.901 | 1.150 |
| KPC_C3 | 0.652 | 1.025 |
| NDM_B1 | 0.876 | 0.926 |
| NDM_B2 | 0.751 | 0.776 |
| NDM_B3 | 0.502 | 0.851 |
| VIM_C1 | 0.776 | 1.224 |
| VIM_C2 | 0.253 | 0.776 |
| VIM_C3 | 0.627 | 0.826 |
| VIM_C4 | 0.502 | 1.000 |
| Non-carbapenemase-producing carbapenem-resistant isolates | ||
| DHA_C1 | 0.826 | 1.100 |
| DHA_C2 | 0.851 | 1.174 |
| DHA_C3 | 0.328 | 0.403 |
| SHV_C1 | 0.726 | 0.851 |
| SHV_C2 | 0.552 | 0.950 |
| Carbapenem susceptible isolates | ||
| ESBL_P1 | 0.029 | 0.079 |
| ESBL_P2 | 0.079 | 0.079 |
| ESBL_P3 | 0.104 | 0.154 |
| ESBL_P4 | 0.129 | 0.129 |
| ESBL_P5 | 0.079 | 0.104 |
Data of selected strains are presented (strains with similar behavior have been excluded)