Table 2.
Antimicrobial susceptibility patterns of bacterial isolates identified from diarrheal stool samples at the University of Gondar Comprehensive Specialized Hospital from January–April 2019.
| Antibiotic disks | E. coli = 219 | K. pneumoniae = 50 | K. ozaenae = 15 | Citrobacter = 14 | P. vulgaris = 6 | E. cloacae = 7 | S. typhi = 1 | Shigella species = 10 | Serratia = 6 | Others = 75 | E. aerogenes = 1 | Total = 404 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No (%) | No (%) | No (%) | No (%) | No (%) | No (%) | No (%) | No (%) | No (%) | No (%) | No (%) | No (%) | ||
| AMP | S | 44 (20) | — | 1 (7) | — | — | — | 0 (0) | 5 (50) | — | 17 (42) | — | 67 (23.5) |
| I | 26 (12) | — | 1 (7) | — | — | — | 0 (0) | 2 (20) | — | 22 (55) | — | 51 (17.9) | |
| R | 149 (68) | — | 13 (86) | — | — | — | 1 (100) | 3 (30) | — | 1 (3) | — | 167 (58.6) | |
|
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| AMC | S | 71 (32) | 8 (16) | 5 (33.3) | — | 0 (0) | — | 0 (0) | 6 (60) | — | 23 (57) | — | 113 (33.1) |
| I | 49 (22) | 6 (12) | 5 (33.3) | — | 2 (33.3) | — | 0 (0) | 1 (10) | — | 17 (43) | — | 80 (23.5) | |
| R | 99 (46) | 36 (72) | 5 (33.3) | — | 4 (66.7) | — | 1 (100) | 3 (30) | — | 0 (0) | — | 148 (43.4 | |
|
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| FEP | S | 177 (81) | 24 (48) | 13 (86.7) | 13 (93) | 5 (83.3) | 6 (86) | 1 (100) | 10 (100) | 6 (100) | 39 (97) | 1 (100) | 295 (79.9) |
| I | 24 (11) | 13 (26) | 2 (13.3) | 1 (7) | 0 (0) | 1 (14) | 0 (0) | 0 (0) | 0 (0) | 1 (3) | 0 (0) | 42 (11.4) | |
| R | 18 (8) | 13 (26) | 0 (0) | 0 (0) | 1 (16.7) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 32 (8.7) | |
|
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| CTX | S | 154 (70) | 18 (36) | 12 (80) | 13 (93) | 4 (66.7) | 6 (86) | — | — | 5 (83.3) | 38 (95) | 1 (100) | 251 (70.1) |
| I | 11 (5) | 5 (10) | 0 (0) | 1 (7) | 0 (0) | 0 (0) | — | — | 0 (0) | 2 (5) | 0 (0) | 19 (5.3) | |
| R | 54 (25) | 27 (54) | 3 (20) | 0 (0) | 2 (33.3) | 1 (14) | — | — | 1 (16.7) | 0 (0) | 0 (0) | 88 (24.6) | |
|
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| FOX | S | 174 (79.4) | 24 (48) | 14 (93) | — | 5 (83.3) | — | — | — | — | 40 (97) | — | 257 (77.6) |
| I | 28 (11) | 13 (26) | 0 (0) | — | 1 (16.4) | — | — | — | — | 1 (3) | — | 43 913.0) | |
| R | 17 (7.6) | 13 (26) | 1 (7) | — | 0 (0) | — | — | — | — | 0 (0) | — | 31 (9.4) | |
|
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| CXM | S | 155 (71) | 33 (66) | 8 (53.3) | — | — | — | — | — | — | 27 (67) | — | 223 (68.8) |
| I | 35 (16) | 9 (18) | 6 (40) | — | — | — | — | — | — | 13 (33) | — | 63 (19.4) | |
| R | 29 (13) | 8 (16) | 1 (6.7) | — | — | — | — | — | — | 0 (0) | — | 38 (11.7) | |
|
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| CAZ | S | 156 (71) | 22 (44) | 11 (73.3) | 14 (100) | 5 (83.3) | 7 (100) | — | — | 4 (66.7) | 36 (90) | 1 (100) | 256 (71.5) |
| I | 6 (3) | 0 (0) | 2 (13.3) | 0 (0) | 0 (0) | 0 (0) | — | — | 1 (16.6) | 4 (10) | 0 (0) | 13 (3.6) | |
| R | 57 (26) | 28 (56) | 2 (13.3) | 0 (0) | 1 (16.7) | 0 (0) | — | — | 1 (16.6) | 0 (0) | 0 (0) | 89 (24.9) | |
|
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| GEN | S | 184 (84) | 37 (74) | 10 (66.7) | 12 (85.7) | 5 (83.3) | 6 (85.7) | — | — | 4 (66.7) | 29 (72) | 1 (100) | 288 (80.4) |
| I | 17 (7) | 8 (16) | 5 (33.3) | 2 (14.3) | 0 (0) | 1 (14.3) | — | — | 1 (16.6) | 11 (28) | 0 (0) | 45 912.6) | |
| R | 18 (9) | 5 (10) | 0 (0) | 0 (0) | 1 (16.7) | 0 (0) | — | — | 1 (16.6) | 0 (0) | 0 (0) | 25 (7.0) | |
|
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| TOB | S | 175 (80) | 30 (60) | 11 (73.3) | 13 (93) | 4 (66.7) | 6 (71.4) | — | — | 5 (83.3) | 30 (75) | 1 (100) | 275 (76.8) |
| I | 18 (8) | 10 (20) | 3 (20) | 1 (7) | 0 (0) | 0 (0) | — | — | 0 (0) | 10 (25) | 0 (0) | 42 (11.7) | |
| R | 26 (12) | 10 (20) | 1 (6.4) | 0 (0) | 2 (33.3) | 1 (28.6) | — | — | 1 (16.7) | 0 (0) | 0 (0) | 41 (11.5 | |
|
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| TET | S | 41 (19) | 9 (18) | 1 (7) | 2 (14) | — | 1 (14.2) | 0 (0) | 5 (50) | 0 (0) | 16 (40) | 0 (0) | 75 (20.7) |
| I | 23 (10) | 0 (0) | 0 (0) | 1 (7) | — | 2 (28.6) | 0 (0) | 2 (20) | 0 (0) | 18 (45) | 0 (0) | 46 (12.7) | |
| R | 155 (71) | 41 (82) | 14 (93) | 11 (79) | — | 4 (57.1) | 1 (100) | 3 (30) | 6 (100) | 6 (15) | 1 (100) | 242 (66.7) | |
|
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| CPR | S | 165 (75) | 35 (70) | 9 (60) | 9 (64) | 3 (50) | 3 (60) | 1 (100) | 10 (100) | 4 (66.7) | 28 (75) | 1 (100) | 268 (73.0) |
| I | 22 (10) | 9 (18) | 5 (33.3) | 3 (21) | 1 (16.7) | 1 (20) | 0 (0) | 0 (0) | 2 (33.3) | 12 (25) | 0 (0) | 55 (15.0) | |
| R | 32 (15) | 6 (12) | 1 (6.7) | 2 (15) | 2 (33.3) | 1 (20) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 44 912.0) | |
|
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| SXT | S | 100 (46) | 13 (26) | 2 (13.3) | 5 (36) | 2 (33.3) | 4 (57) | 0 (0) | 6 (60) | 22 (63) | 23 (57) | 1 (100) | 178 (44.7) |
| I | 23 (10) | 6 (12) | 1 (6.7) | 1 (7) | 0 (0) | 1 (14.3) | 0 (0) | 2 (20) | 12 (34) | 13 (32) | 0 (0) | 59 (14.8) | |
| R | 96 (44) | 31 (62) | 12 (80) | 8 (57) | 4 (66.7) | 2 (28.7) | 1 (100) | 2 (20) | 1 (3) | 4 (11) | 0 (0) | 161 (40.5) | |
AMP: ampicillin, TET: tetracycline, GEN: gentamicin, CMX: cefuroxime, TOB: tobramycin, CPR: ciprofloxacin, AMC: amoxicillin/clavulanic acid, FEP: cefepime, CAZ: ceftazidime, CTX: cefotaxime, FOX: cefoxitin, AZM: azithromycin, and SXT: trimethoprim-sulfamethoxazole. Note. Intrinsically resistance antibiotics that are not recommended for isolates were denoted by (—).