Table 2.
Antibiotic resistance profile of S. aureus isolates
| Isolates | Antibiotica-resistant strains, n (s%) |
||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P | GM | KA | AK | S | E | CCb | TE | TMP | RIF | FA | CIP | C | |
| MSSA (n = 202) | 159 (78.7) | 4 (2.0) | 11 (5.4) | 4 (2.0) | 6 (3.0) | 7 (3.5) | 7 (3.5) | 35 (17.3) | 34 (16.8) | 0 | 1 (0.5) | 5 (2.4) | 2 (1.0) |
| PVLs+ (n = 24) | 16 (66.6) | 0 | 3 (12.5) | 1 (4.2) | 0 | 0 | 0 | 6 (25.0) | 7 (29.2) | 0 | 0 | 1 (4.2) | 1 (4.2) |
| PVL− (n = 178) | 143 (80.3) | 4 (2.2) | 8 (4.5) | 3 (1.5) | 6 (3.3) | 7 (3.9) | 7 (3.9) | 29 (16.3) | 27 (15.1) | 0 | 1 (0.5) | 4 (2.2) | 1 (0.5) |
| MRSA (n = 89) | 89 (100) | 42 (47.2) | 55 (61.8) | 26 (29.2) | 29 (32.5) | 38 (42.7) | 38 (42.7) | 41 (46.0) | 27 (30.3) | 0 | 30 (33.7) | 51 (57.3) | 3 (3.3) |
| PVLs+ (n = 13) | 13 (100) | 5 (38.4) | 9 (69.2) | 2 (15.4) | 3 (23.0) | 3 (23.0) | 3 (23.0) | 4 (30.7) | 5 (38.4) | 0 | 2 (15.4) | 10 (76.9) | 0 |
| PVL− (n = 76) | 76 (100) | 37 (48.6) | 46 (60.5) | 24 (31.5) | 26 (34.2) | 35 (46.0) | 35 (46.0) | 37 (48.6) | 22 (28.9) | 0 | 28 (36.8) | 41 (53.9) | 3 (3.9) |
a
P = Penicillin; GM = gentamicin; KA = kanamycin; AK = amikacin; S = streptomycin; E = erythromycin; CC = clindamycin; TE = tetracycline; TMP = trimethoprim; RIF = rifampicin; CIP = ciprofloxacin; C = chloramphenicol.
b
Among MSSA (PVL−) strains 4 exhibited inducible and 2 presented constitutive resistance to clindamycin, whereas among MRSA (PVLs+) and (PVL−) strains constitutive and inducible resistance was exhibited by 2 and 1, and 22 and 16 isolates, respectively.