Table 3.
Antimicrobial resistance profiles of Gram positive bacteria isolates from various site of infections among patients at Debre Markos Referral Hospital (2011–2014)
| Antimicrobials | S. aureus | S. pyogenes | S. pneumoniae | Total | ||||
|---|---|---|---|---|---|---|---|---|
| # T | R% | # T | R% | # T | R% | # T | R% | |
| Ampicillin | 89 | 76 (85.4) | 10 | 8 (80) | 11 | 10 (90.9) | 110 | 94 (85.5) |
| Gentamicin | 68 | 59 (86.8) | 3 | 0 | ND | ND | 71 | 59 (83.1) |
| Ceftriaxone | 37 | 5 (13.5) | 12 | 1 (8.3) | 12 | 6 (50) | 61 | 12 (19.7) |
| Norfloxacin | 18 | 4 (22.2) | 3 | 0 | 1 | 0 | 22 | 4 (18.2) |
| Ciprofloxacin | 13 | 6 (46.2) | 4 | 0 | 3 | 1 (33.3) | 20 | 7 (35) |
| Chloramphenicol | 27 | 9 (33.3) | 8 | 5 (62.5) | 1 | 0 | 36 | 14 (38.9) |
| Cotrimoxazole | 16 | 13 (81.3) | 3 | 3 (100) | 1 | 0 | 20 | 16 (80) |
| Amoxicillin | 72 | 63 (87.5) | 2 | 0 | ND | ND | 74 | 63 (85.1) |
| Tetracycline | 82 | 57 (69.5) | 5 | 1 (20) | 1 | 0 | 88 | 58 (65.9) |
| Erythromycin | 62 | 60 (96.8) | 3 | 0 | 1 | 0 | 66 | 60 (90.9) |
| Oxacillin | 62 | 27 (43.5) | 2 | 0 | ND | ND | 64 | 27 (42.2) |
| Penicillin | 65 | 61 (93.8) | 3 | 0 | ND | ND | 68 | 61 (89.7) |
| Clindamycin | 59 | 55 (93.2) | ND | ND | ND | ND | 59 | 55 (93.2) |
| Cloxacillin | 4 | 2 (50) | 1 | 0 | 1 | 0 | 6 | 2 (33.3) |
| Total | 674 | 497 (72.6) | 59 | 18 (30.5) | 32 | 17 (54.4) | 765 | 532 (71.2) |
# T number of isolates tested against each antimicrobial agent, R% percent of isolates resistance to antimicrobial agent, ND not done