Table 1.
Levels of detection for the three CRE screening plates for detection of carbapenem-resistant Enterobacteriaceae
| Bacterial strain | Species | bla type | MIC (μg/ml) |
Level of detection (CFU/ml) on the following screening platea: |
Reference | ||||
|---|---|---|---|---|---|---|---|---|---|
| Imipenem | Meropenem | Ertapenem | MacI | MacD | Chrom | ||||
| 490 (ST 258) | K. pneumoniae | KPC-3 | 32 | 32 | 64 | 1.1 × 102 | 1.1 × 103 | 1.1 × 102 | 11 |
| 9 | K. pneumoniae | KPC-3 | 0.5 | 1 | 1.5 | 4.1 × 102 | ND | 4.1 × 103 | 16 |
| 14 | K. pneumoniae | KPC-3 | >32 | >32 | >32 | 1 × 102 | 1 × 102 | 1 × 102 | 16 |
| 533 | Enterobacter cloacae | KPC-2 | 4 | 2 | 12 | 1.1 × 102 | ND | 1.1 × 102 | 3 |
| 360 | Escherichia coli | KPC-2 | 1 | 1.5 | 2 | 9.7 × 101 | ND | 9.7 × 104 | 6 |
| 2438 | E. coli | KPC-2 | 12 | 12 | >32 | 6.5 × 101 | 2 × 106 | 6.5 × 101 | 6 |
| 1679 | E. coli | KPC-2 | 4 | 2 | 12 | 8.9 × 101 | ND | 8.9 × 101 | 6 |
| 2112 | E. coli | KPC-3 | 1 | 1.5 | 0.75 | 8.3 × 106 | ND | ND | 5 |
| 2565 | K. pneumoniae | IMP-1 | 2 | 32 | 4 | 1.4 × 104 | ND | 1.4 × 106 | MOSAR1144 |
| 2577 | K. pneumoniae | VIM-1 | 32 | 32 | 32 | 1.1 × 102 | 1.1 × 105 | 1.1 × 102 | MOSAR1156 |
a
Chrom, CHROMagar-KPC plates; MacI, MacConkey agar with imipenem at 1 μg/ml; MacD, MacConkey agar plates with standard imipenem, meropenem, and ertapenem 10-μg paper disks; ND, no detection.