Table 2.
Multidrug resistance pattern of Enterobacteriaceae at ICL, Addis Ababa, Ethiopia.
| Isolates (n) | Level of antibiotic resistance (n (%)) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| R0 | R1 | R2 | R3 | R4 | R5 | R6 | R7 | ≥R8 | Total MDR isolates (≥3) | |
| E. coli (226) | 30 (13.3) | 20 (8.8) | 25 (11.1) | 28 (12.4) | 12 (5.3) | 29 (13.7) | 33 (14.6) | 28 (12.4) | 21 (9.3) | 151 (66.8) |
| K. pneumoniae (43) | 3 (0.0) | 4 (0.0) | 2 (0.0) | 6 (13.9) | 2 (4.6) | 2 (4.6) | 9 (20.9) | 8 (18.6) | 7 (16.3) | 34 (79.1) |
| Enterobacter spp. (11) | 0 (0.0) | 0 (0.0) | 1 (9.1) | 0 (0.0) | 2 (18.2) | 0 (0.0) | 1 (9.1) | 3 (27.3) | 4 (36.4) | 10 (90.9) |
| Citrobacter spp. (11) | 1 (9.1) | 0 (0.0) | 1 (9.1) | 2 (18.2) | 2 (18.2) | 1 (9.1) | 4 (36.4) | 0 (0.0) | 0 (0.0) | 9 (81.8) |
| P. mirabilis (6) | 2 (33.3) | 0 (0.0) | 1 (16.7) | 0 (0.0) | 2 (33.3) | 0 (0.0) | 1 (16.7) | 0 (0.0) | 0 (0.0) | 3 (50.0) |
| Shigella spp. (2) | 1 (50.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (50.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (50.0) |
| M. morganii (5) | 2 (40.0) | 1 (20.0) | 0 (0.0) | 1 (20.0) | 1 (20.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 2 (40.0) |
| Providencia spp. (5) | 0 (0.0) | 2 (40.0) | 0 (0.0) | 1 (20.0) | 1 (20.0) | 1 (20.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 3 (60.0) |
| Serratia spp. (3) | 0 (0.0) | 2 (66.6) | 0 (0.0) | 1 (33.3) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 1 (33.3) |
| Total (n = 312) | 39 (12.5) | 29 (9.3) | 30 (9.6) | 39 (12.5) | 22 (7.1) | 34 (10.9) | 48 (15.4) | 39 (12.5) | 32 (10.3) | 214 (68.6) |
Note: R0: resistance to no antibiotics; R1-8: resistance to 1, 2, 3, 4, 5, 6, 7, and 8 antibiotics; ≥R3: resistance to 3 or more antibiotics from different classes.