Table 2.
Antimicrobial susceptibility data and MIC values of 43 K. pneumoniae strains collected from hospitals in Lagos.
| Antimicrobial Agent | Standard Range | Test Results | ||||
|---|---|---|---|---|---|---|
| S ≤ (mg/L) | R ≥ (mg/L) | S (%) | R (%) | MIC50 (mg/L) | MIC90 (mg/L) | |
| Ciprofloxacin | 0.25 | 0.5 | 72.1 | 27.9 | 0.25 | 1.5 |
| Ofloxacin | 0.25 | 0.5 | 44.2 | 55.8 | 0.25 | 0.5 |
| Gentamicin | 2 | 4 | 95.3 | 4.7 | 1.5 | 2.0 |
| Cefixime | 1 | 2 | 65.1 | 34.9 | 1.0 | 1.5 |
| Ceftazidime | 1 | 2 | 53.5 | 46.5 | 1.0 | 1.5 |
| Cefuroxime | 8 | 16 | 25.6 | 74.4 | 16 | 16 |
| Imipenem | 2 | 8 | 93.0 | 7.0 | 1.0 | 1.5 |
| Cotrimozaxole | 2 | 4 | 9.3 | 90.7 | 4.0 | 16 |
| Amoxicillin/Clavulanic Acid | 8 | 16 | 100 | 0.0 | 16 | 16 |
| Nitrofurantoin | 8 | 16 | 100 | 0.0 | 16 | 16 |
S: sensitive; R: resistance, MIC: minimum inhibitory concentration.