Table 2.
Comparative susceptibility of MRSA and MSSA strains to different antimicrobial agents
| Classes of ATB | Antibiotics | MSSA (%) | MRSA (%) | P-value |
|---|---|---|---|---|
| Penicillines | Penicillin G | 0 | 0 | |
| Amoxicillin + Clavulanic acid | 97.8 | 61 | 0.0001 | |
| Macrolides | Erythromycin | 52.2 | 23.7 | 0.002 |
| Azithromycin | 52.2 | 23.7 | 0.002 | |
| 2nd and 3rd generation of Cephalosporins | Cefazolin | 97.8 | 55.9 | 0.0001 |
| Cefixim | 19.6 | 3.4 | 0.001 | |
| Ceftriaxone | 71.7 | 6.8 | 0.0001 | |
| Ceftazidime | 8.7 | 3.4 | 0.005 | |
| Quinolones | Ciprofloxacin | 60.9 | 32.2 | 0.0001 |
| Sulfonamides | Cotri-moxazole | 69.6 | 47.5 | 0.004 |
| Aminoglycosides | Gentamicin | 95.1 | 66.7 | 0.001 |
| Tobramycin | 82.6 | 55.9 | 0.004 | |
| Tetracyclines | Doxycycline | 71.7 | 81.4 | 0.478 |
| Carbapenems | Imipenem | 100 | 81.4 | 0.008 |
| Lincosamides | Clindamycin | 93.5 | 89.8 | 0.063 |
| Polypeptides | Vancomycin | 100 | 100 | |
| Divers | Rifampicin | 100 | 91.5 | 0.043 |
| Chloramphenicol | 63 | 66.1 | 0.933 |
A p-value less than 0.05 was considered statistically significant and are in boldface