Table 2.
Antimicrobial Susceptibility Patterns of the Recovered B. cereus Isolates (n=60)
| Antimicrobial Classes | Tested Antimicrobial Agent | Interpretation | |||||
|---|---|---|---|---|---|---|---|
| Sensitive | Intermediate | Resistance | |||||
| n | % | n | % | n | % | ||
| Penicillins | Penicillin | 0 | 0 | 0 | 0 | 60 | 100 |
| Amoxicillin | 0 | 0 | 0 | 0 | 60 | 100 | |
| β -Lactam- β-lactamase inhibitor combination | Amoxicillin-Clavulanic acid | 5 | 8.4 | 0 | 0 | 55 | 91.6 |
| Cephalosporins | Cefotaxime | 0 | 0 | 10 | 16.7 | 50 | 83.3 |
| Ceftazidime | 1 | 1.7 | 9 | 15 | 50 | 83.3 | |
| Carbapenems | Meropenem | 58 | 96.6 | 2 | 3.4 | 0 | 0 |
| Aminoglycosides | Gentamycin | 24 | 40 | 20 | 33.4 | 16 | 26.6 |
| Streptomycin | 19 | 31.7 | 25 | 41.7 | 16 | 26.6 | |
| Fluoroquinolones | Ciprofloxacin | 55 | 91.6 | 5 | 8.4 | 0 | 0 |
| Quinolones | Nalidixic acid | 13 | 21.6 | 47 | 78.4 | 0 | 0 |
| Sulfonamides | Trimethoprim-Sulfamethoxazole | - | - | 12 | 20 | 48 | 80 |
| Tetracyclines | Doxycycline | 0 | 0 | 0 | 0 | 60 | 100 |
| Macrolides | Erythromycin | - | - | 20 | 33.4 | 40 | 66.6 |
| Glycopeptides | Vancomycin | 59 | 98.3 | 1 | 1.7 | 0 | 0 |
| Chi-square | 424.24 | 218.84 | 260.11 | ||||
| p-value | <0.0001 | <0.0001 | <0.0001 | ||||