Table 2.
Antibiotic resistance pattern of bacterial isolates in external ocular infections, Gondar University Teaching Hospital, Ethiopia
| Bacterial isolates | No. (%) | Pattern | Common antibiotic tested, No. (%) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AMP | AMOX | CIP | CN | MET | NA | CAF | ERY | PEN | TTC | SXT | CEF | |||
| S. aureus | 35(16.7) | S | 27(77.1) | 26(74.3) | 28(80.0) | – | 32(91.4) | 25(71.4) | 23(65.7) | 26(74.3) | 24(68.6) | 22(62.9) | 28(63.3) | 33(94.3) |
| R | 8(22.9) | 9(25.7) | 8(20.09) | – | 3(8.6) | 10(19.1) | 12(34.3) | 9(25.7) | 11(31.4) | 13(16.8) | 7(36.4) | 2(5.7) | ||
| CNS | 36(17.1) | S | 27(75.0) | 26(72.2) | 27(77.80) | – | 33(91.7) | 28(77.8) | 28(77.8) | 31(86.1) | 24(66.7) | 26(72.2) | 32(88.9) | 31(88.6) |
| R | 9(25.0) | 10(27.8) | 9(22.2) | – | 3(8.3) | 8(25.8) | 8(25.8) | 5(13.9) | 12(33.3) | 10(27.8) | 4(11.1) | 4(11.4) | ||
| S. pneumoniae | 2(1.0) | S | 0(0) | 2(100) | 1(50.0) | – | 2(100) | 2(100) | 1(50.0) | 2(100) | 2(100) | 2(100) | 2(100) | 2(100) |
| R | 2(100) | 0(0) | 1(50.0) | – | 0(0) | 0(0) | 1(50.0) | 0(0) | 0(0) | 0(0) | 0(0) | 0(0) | ||
| S. pyogen | 2(1.0) | S | 1(50.0) | 2(100) | 2(100) | – | 2(100) | 2(100) | 2(100) | 1(50.0) | 2(100) | 1(50.0) | 2(100) | 1(50.0) |
| R | 1(50.0) | 0(0) | 0(0) | – | 0(0) | 0(0) | 0(0) | 1(50.0) | 0(0) | 1(50.0) | 0(0) | 1(50.0) | ||
| Enterobacter spp. | 2(1.0) | S | 2(100) | 2(100) | 2(100) | – | 2(100) | 1(50.0) | 2(100) | 1(50.0) | 1(50.0) | 2(100) | 2(100) | 2(100) |
| R | 0(0) | 0(0) | 0(0) | – | 0(0) | 1(50.0) | 0(0) | 1(50.0) | 1(50.0) | 0(0) | 0(0) | 0(0) | ||
| E. coli | 10(4.8) | S | 8(80.0) | 5(50.0) | 8(80.0) | 7(70.0) | – | 7(70.0) | 9(90.0) | – | – | 5(50.0) | 7(70.0) | 9(90.0) |
| R | 2(20.0) | 5(50.0) | 2(20.0) | 3(30.0) | – | 3(30.0) | 1(10.0) | – | – | 5(50.0) | 3(30.0) | 1(10.0) | ||
| Klebsiella spp. | 8(3.8) | S | 5(62.5) | 7(87.5) | 5(62.5) | 8(100.0) | – | 5(62.5) | 5(62.5) | – | – | 5(62.5) | 5(62.5) | 7(87.5) |
| R | 3(37.5) | 1(12.5) | 3(37.5) | 0(0.0) | – | 3(37.5) | 3(37.5) | – | – | 3(37.5) | 3(37.5) | 1(12.5) | ||
| Pseudomonas spp. | 14(6.7) | S | 11(78.6) | 7(50.0) | 11(78.6) | 11(78.6) | – | 10(71.4) | 10(71.4) | – | – | 10(71.4) | 9(64.3) | 13(92.9) |
| R | 3(21.4) | 7(50.0) | 3(21.4) | 3(21.4) | – | 4(28.6) | 4(28.6) | – | – | 4(28.6) | 5(35.7) | 1(7.1) | ||
| Citrobacter spp. | 4(1.9) | S | 3(75.0) | 1(25.0) | 4(100.0) | 4(100.0) | – | 4(100.0) | 3(75.0) | – | – | 1(25.0) | 4(100.0) | 4(100.0) |
| R | 1(25.0) | 3(75.0) | 0(0.0) | 0(0.0) | – | 0(0.0) | 1(25.0) | – | – | 3(75.0) | 0(0.0) | 0(0.0) | ||
| H. influenzae | 10(4.8) | S | 9(90.0) | 6(60.0) | 9(90.0) | 9(90.0) | – | 9(90.0) | 8(80.0) | – | – | 6(60.0) | 8(80.0) | 10(100) |
| R | 1(10.0) | 4(40.0) | 1(10.0) | 1(10.0) | – | 1(10.0) | 2(20.0) | – | – | 4(40.0) | 2(20.0) | 0(0.0) | ||
| P. vulgaris | 2(1.0) | S | 2(100) | 1(50.0) | 1(50.0) | 2(100) | – | 2(100) | 2(100) | – | – | 0(0) | 2(100) | 1(50.0) |
| R | 0(0) | 1(50.0) | 1(50.0) | 0(0) | – | 0(0) | 0(0) | – | – | 2(100) | 0(0) | 1(50.0) | ||
| P. mirabilis | 3(1.4) | S | 1(33.3) | 2(66.7) | 3(100.0) | 3(100.0) | – | 2(66.7) | 1(33.3) | – | – | 3(100.0) | 3(100.0) | 3(100.0) |
| R | 2(66.7) | 1(33.3) | 0(100.0) | 0(100.0) | – | 1(33.3) | 2(66.7) | – | – | 0(100.0) | 0(100.0) | 0(100.0) | ||
| Providencia spp. | 3(1.4) | S | 2(66.7) | 2(66.7) | 2(66.7) | 3(100.0) | – | 2(66.7) | 2(66.7) | – | – | 1(33.3) | 2(66.7) | 3(100.0) |
| R | 1(33.3) | 1(33.3) | 1(33.3) | 0(100.0) | – | 1(33.3) | 1(33.3) | – | – | 2(66.7) | 1(33.3) | 0(100.0) | ||
| Total | 131(62.4) | S | 98(74.8) | 89(67.9) | 104(79.4) | 47(87.0) | 71(92.2) | 100(76.3) | 96(73.8) | 61(78.2) | 53(68.8) | 84(64.1) | 106(80.9) | 119(91.5) |
| R | 33(25.2) | 42(32.1) | 27(20.6) | 7(13.0) | 6(7.8) | 31(23.7) | 34(26.2) | 17(21.8) | 24(31.2) | 47(35.9) | 25(19.1) | 11(8.5) | ||
AMP ampicillin, AMOX amoxicillin, CIP ciprofloxacin, CN gentamycin, MET methicillin, NA nalidic acid, CAF chloramphenicol, ERY erythromycin, VANC vancomycin, PEN penicillin, TTC tetracycline, SXT co-trimoxazole, CEF ceftriaxone