Table 4. Antimicrobial susceptibility patterns of gram-negative bacterial isolates.
| Antibiotics (%) | Bacterial isolates | |||||||
|---|---|---|---|---|---|---|---|---|
| Pattern | K. pneumoniae (n = 39) | E. coli (n = 16) | P. aeruginosa (n = 5) | H. influenzae (n = 3) | P. mirabilis (n = 2) | E. cloacae (n = 2) | Total (n = 67) | |
| CAF | S | 35 (89.5) | 14 (87.5) | 3 (100) | 1 (50.0) | 2 (100) | 55 (88.7) | |
| I | 4 (10.5) | 0 | N/A | 0 | 0 | 0 | 4 (6.5) | |
| R | 0 | 2 (12.5) | 0 | 1 (50.0) | 0 | 3 (4.8) | ||
| AZM | S | 36 (92.3) | 11 (68.8) | N/A | 3 (100) | 2 (100) | 2 (100) | 54 (87.1) |
| R | 3 (7.7) | 5(31.2) | 0 | 0 | 0 | 8 (12.9) | ||
| COT | S | 3 (7.7) | 5 (31.2) | 1 (33.3) | 1 (50.0) | 2 (100) | 12 (19.4) | |
| I | 0 | 0 | N/A | 0 | 0 | 0 | 0 | |
| R | 36 (92.3) | 11 (68.8) | 2 (66.7) | 1 (50.0) | 0 | 50 (80.6) | ||
| TET | S | 3 (7.7) | 1 (6.25) | 1 (33.3) | 0 | 0 | 5 (8.1) | |
| I | 2 (5.1) | 1 (6.25) | N/A | 0 | 0 | 0 | 3 (4.8) | |
| R | 34 (87.2) | 14 (87.5) | 2 (66.7) | 2 (100) | 2 (100) | 54 (87.1) | ||
| DOX | S | 4 (10.3) | 3 (18.8) | 0 | 0 | 7 (11.9) | ||
| I | 1 (2.5) | 0 | N/A | N/A | 0 | 0 | 1 (1.7) | |
| R | 34 (87.2) | 13 (81.2) | 2 (100) | 2 (100) | 51 (86.4) | |||
| GEN | S | 37 (94.9) | 14 (87.5) | 1 (20.0) | 2 (100) | 2 (100) | 56 (87.5) | |
| I | 0 | 0 | 0 | N/A | 0 | 0 | 0 | |
| R | 2 (5.1) | 2 (12.5) | 4 (80.0) | 0 | 0 | 8 (12.5) | ||
| AMC | S | 2 (5.1) | 6 (37.5) | N/A | 3 (100) | 0 | 2 (100) | 13 (21.0) |
| R | 37 (94.9) | 10 (62.5) | 0 | 2 (100) | 0 | 49 (79.0) | ||
| CTR | S | 31 (79.5) | 12 (75.0) | 3 (100) | 1 (50.0) | 2 (100) | 49 (79.0) | |
| I | 0 | 1 (6.2) | N/A | 0 | 0 | 0 | 1 (1.6) | |
| R | 8 (20.5) | 3 (18.8) | 0 | 1 (50.0) | 0 | 12 (19.4) | ||
| CPR | S | 33 (84.6) | 14 (87.5) | 4 (80.0) | 3 (100) | 2 (100) | 2 (100) | 58 (86.6) |
| I | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| R | 6 (15.4) | 2 (12.5) | 1 (20.0) | 0 | 0 | 0 | 9 (13.4) | |
| CAZ | S | 1 (20.0) | 1 (20.0) | |||||
| I | N/T | N/T | 0 | N/A | N/T | N/T | 0 | |
| R | 4 (80.0) | 4 (80.0) | ||||||
| PIP | S | 1 (20.0) | 1 (20.0) | |||||
| I | N/A | N/A | 1 (20.0) | N/A | N/A | N/A | 1 (20.0) | |
| R | 3 (60.0) | 3 (60.0) | ||||||
| AMP | S | 0 | 0 | N/A | 0 | 0 | 0 | |
| R | 39 (100) | 16 (100) | 3 (100) | 2 (100) | 2 (100) | 62 (100) | ||
Note. N/A: Not applicable, N/T: Not tested, CPR: Ciprofloxacin, CTR: Ceftriaxone, TET: Tetracycline, CAF: Chloramphenicol, AZM: Azithromycin, CAZ: Ceftazidime, DOX: Doxycycline, COT: Co-trimoxazole, PIP: Piperacillin, AMP: Ampicillin, GEN: Gentamicin, AMC: Amoxicillin-clavulanic acid, S: Sensitive, I: Intermediate, R: Resistant.