Table 1.
Bacterial strains used for colonization studies and their measured MIC values.
| Strain | K. pneumoniae (mg/L) | E. coli (mg/L) | ||||
|---|---|---|---|---|---|---|
| ATCC 700603 | Kp 14520 | Kp 419614 | ATCC 35218 | Ec 208873 | Ec 280624 | |
| Specimen | LS | Urine | Stool | LS | Urine | Stool |
| Amoxicillin | 8 | 32 (R) | – | 8 | 32 (R) | 32 (R) |
| Fosfomycin | – | 64 (R) | – | 2 | 64 (R) | 64 (R) |
| Piperacilline/tazobactam | 16 | 16 (I) | 128 (R) | 1 | 4 (I) | 128 (R) |
| Ceftazidime | 32 | 32 (R) | 64 (R) | – | 4 (R) | 64 (R) |
| Meropenem | 0.5 | 0.06 (S) | 32 (R) | < 0.015 | 0.25 (S) | 2 (R) |
| Ciprofloxacin | 4 | 32 (R) | 32 (R) | > 1 | 4 (R) | 4 (R) |
| Gentamicin | 8 | - | 8 (R) | 4 | 1 (S) | 1 (R) |
LS laboratory standard, sensitive (S), resistant (R), intermediate (I).