Table 5.
The antimicrobial resistance pattern of Gram-positive bacterial isolates from patients with DFI
| Antibiotics | Gram-positive isolates | Total (n=26) | ||||
|---|---|---|---|---|---|---|
| MRSA (n=14) | Enterococcus spp. (n=6) | viridans streptococci (n=4) | MS CoNS (n=2) | |||
| N (%) | N (%) | N (%) | N (%) | N (%) | ||
| Penicillins | Penicillin G | 14 (100) | 2 (33.3) | 2 (50) | 2 (100) | 20 (76.9) |
| Ampicillin | NA | 2 (33.3) | NA | NA | 2/6 (33.3) | |
| Cephamycins | Cefoxitin | 14 (100) | NA | NA | 0 | 14/16 (87.5) |
| 3rd generation cephalosporins | Ceftriaxone | 14 (100) | NA | 2 (50) | 0 | 16/20 (80) |
| Cefotaxime | 14 (100) | NA | 2 (50) | 0 | 16/20 (80) | |
| 4th generation cephalosporins | Cefepime | 14 (100) | NA | 2 (50) | 0 | 16/20 (80) |
| Oxazolidinones | Linezolid | 0 | 0 | 0 | 0 | 0 |
| Glycopeptides | Vancomycin | 0 | 0 | 0 | 0 | 0 |
| Teicoplanin | 0 | 0 | 0 | 0 | 0 | |
| Quinolones | Ciprofloxacin | 2 (14.3) | 0 | 0 | 0 | 2 (7.7) |
| Levofloxacin | 2 (14.3) | 0 | 0 | 0 | 2 (7.7) | |
| Ofloxacin | 2 (14.3) | 0 | 0 | 0 | 2 (7.7) | |
| Tetracyclines | Tetracycline | 6 (42.9) | 0 | 2 (50) | 0 | 8 (30.8) |
| Doxycycline | 6 (42.9) | 0 | 2 (50) | 0 | 8 (30.8) | |
| Minocycline | 6 (42.9) | 0 | 2 (50) | 0 | 8 (30.8) | |
| Tigecycline | 2 (14.3) | 0 | 0 | 0 | 2 (7.7) | |
| Lincomycin | Clindamycin | 6 (42.9) | NA | 0 | 0 | 6/20 (30) |
| Macrolides | Erythromycin | 8 (57.1) | 2 (33.3) | 2 (50) | 0 | 12 (46.1) |
| Azithromycin | 8 (57.1) | 2 (33.3) | 2 (50) | 0 | 12 (46.1) | |
| Clarithromycin | 8 (57.1) | 2 (33.3) | 2 (50) | 0 | 12 (46.1) | |
| Aminoglycosides | Gentamicin | 10 (71.4) | NA | NA | 0 | 10/16 (62.5) |
| Amikacin | 8 (57.1) | NA | NA | 0 | 8/16 (50) | |
| Gentamicin (HLA) | NA | 0 | NA | NA | 0 | |
| SMX/TMP | SMX/TMP | 4 (28.6) | NA | 0 | 0 | 4/16 (25) |
| Rifamycins | Rifampicin | 2 (14.3) | 0 | 0 | 0 | 2 (7.7) |
| MDR | 12 (85.6) | 0 | 0 | 0 | 12 (46.1) | |
| XDR | 2 (100) | 0 | 0 | 0 | 2 (7.7) | |
MRSA – methicillin resistant Staphylococcus aureus; MS CoNS – methicillin sensitive coagulase-negative staphylococci; SMX/TMP – sulfamethoxazole/trimethoprim; HLA – high level aminoglycosides; MDR – multidrug resistant; XDR – extensively drug resistant; NA – not applicable (the organism is not tested against this antibiotic).