Table 3.
Antimicrobial Susceptibility Pattern of GPB Isolated from Patients with Ear Infection at the UoGCSH from Jan 2013 to Dec 2018
| Drug (Tested) | S. aureus | S. pyrogens | S. pneumoniae | V. streptococci | Other Streptococcus spps | CoNS | Total (%) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S | R | S | R | S | R | S | R | S | R | S | R | S | R | |
| PEN (53) | 11 | 23 | 4 | 2 | 4 | 0 | 1 | 1 | 2 | 1 | 3 | 1 | 25 (47.2) | 28 (52.8) |
| AMP (31) | 6 | 11 | 4 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 0 | 1 | 14 (45.2) | 17 (54.8) |
| AMX (22) | 7 | 7 | 2 | 1 | 1 | 1 | – | – | 2 | 0 | 1 | 0 | 13 (59.1) | 9 (40.9) |
| OXA (20) | 9 | 9 | – | – | 0 | 1 | 0 | 1 | – | – | – | – | 9(45) | 11 (55) |
| AUG (8) | 4 | 2 | 1 | 0 | – | – | – | – | 1 | 0 | – | – | 6 (75) | 2 (25) |
| CRO (48) | 22 | 9 | 6 | 0 | 1 | 0 | 3 | 1 | 1 | 2 | 2 | 1 | 35 (72.9) | 13 (27.1) |
| CRX (19) | 10 | 6 | – | – | – | – | – | – | 0 | 1 | 2 | 0 | 12 (63.2) | 7 (36.8) |
| CTX (16) | 6 | 3 | 2 | 0 | 2 | 0 | – | – | 1 | 0 | 1 | 1 | 12 (75) | 4 (25) |
| CIP (52) | 29 | 8 | 6 | 0 | – | – | 2 | 1 | 1 | 1 | 3 | 1 | 41 (78.8) | 11 (21.2) |
| NOR (31) | 14 | 5 | 5 | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 2 | 0 | 23 (74.9) | 8 (25.8) |
| GEN (43) | 21 | 4 | 6 | 0 | 2 | 1 | 3 | 2 | – | – | 4 | 0 | 36 (83.7) | 7 (16.3) |
| TET (64) | 16 | 29 | 0 | 6 | 3 | 1 | 2 | 2 | 1 | 1 | 0 | 3 | 22 (34.4) | 42 (65.6) |
| ERY (78) | 25 | 30 | 7 | 3 | 1 | 1 | 0 | 4 | 0 | 2 | 4 | 1 | 37 (47.4) | 41 (52.6) |
| VAN (70) | 43 | 4 | 10 | 0 | 4 | 0 | 2 | 0 | 2 | 0 | 5 | 0 | 66 (94.3) | 4 (5.7) |
| SXT (37) | 11 | 15 | 1 | 2 | 1 | 2 | 2 | 0 | – | – | 2 | 1 | 17 (45.9) | 20 (54.1) |
| CAF (39) | 18 | 9 | 3 | 0 | 5 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 29 (74.4) | 10 (25.6) |
| CLI (36) | 22 | 6 | 3 | 0 | – | – | – | – | – | – | 3 | 2 | 28 (77.8) | 8 (22.2) |
| Overall DSP (%) | 274 (60.4) | 180 (39.6) | 60 (76.9) | 18 (23.1) | 26 (76.5) | 8 (23.5) | 19 (59.4) | 13 (40.6) | 13 (54.2) | 11 (45.8) | 33 (73.3) | 12 (26.7) | 425 (63.7) | 242 (46.3) |
Abbreviations: PEN, penicillin; AMP, ampicillin; AMX, amoxicillin; OXA, oxacillin; AUG, augmentin; CRO, ceftriaxone; CTX, cefoxitin; CRX, cefuroxime; CIP, ciprofloxacin; NOR, norfloxacin; GEN, gentamicin; TET, tetracycline; ERY, erythromycin; VAN, vancomycin; SXT, co-trimoxazole; CAF, chloramphenicol; CLI, clindamycin; CoNS, coagulase-negative staphylococci; DSP, drug-susceptibility pattern.