Table 1.
Distribution of clinically isolated gram-negative bacilli between 2012 and 2021.
| Type | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 |
|---|---|---|---|---|---|---|---|---|---|---|
| E. coli | 1,371 (37.1) | 1,463 (35.6) | 1,633 (38.1) | 1,580 (34.3) | 1,581 (34.8) | 1,378 (29.6) | 1,569 (30.8) | 1715 (25.5) | 1,588 (24.8) | 1,611 (23.0) |
| Klebsiella spp. | 800 (21.7) | 819 (19.9) | 886 (20.7) | 852 (18.5) | 818 (18.0) | 939 (20.2) | 1,112 (21.9) | 1,541 (22.9) | 1,554 (24.3) | 1,656 (23.6) |
| Acinetobacter spp. | 397 (10.7) | 469 (11.4) | 434 (10.1) | 558 (12.1) | 490 (10.8) | 714 (15.3) | 730 (14.3) | 986 (14.7) | 1,278 (19.9) | 1,286 (18.3) |
| P. aeruginosa | 383 (10.4) | 440 (10.7) | 519 (12.1) | 527 (11.5) | 486 (10.7) | 496 (10.6) | 559 (11.0) | 701 (10.4) | 788 (12.3) | 744 (10.6) |
| Enterobacter spp. | 318 (8.6) | 287 (7.0) | 147 (3.4) | 109 (2.4) | 132 (2.9) | 100 (2.1) | 118 (2.3) | 149 (2.2) | 167 (2.6) | 333 (4.7) |
| S. maltophilia | 82 (2.2) | 111 (2.7) | 122 (2.8) | 125 (2.7) | 168 (3.7) | 193 (4.1) | 201 (3.9) | 376 (5.6) | 322 (5.0) | 383 (5.5) |
| B. cepacia | 22 (0.6) | 10 (0.2) | 30 (0.7) | 29 (0.6) | 40 (0.9) | 47 (1.0) | 57 (1.1) | 74 (1.1) | 54 (0.8) | 69 (1.0) |
| H. influenzae | - | - | 60 (1.4) | 356 (7.7) | 367 (8.1) | 279 (6.0) | 258 (5.1) | 449 (6.7) | 62 (1.0) | 338 (4.8) |
| Proteus spp. | 67 (1.8) | 63 (1.5) | 87 (2.0) | 44 (1.0) | 40 (0.9) | 62 (1.3) | 75 (1.5) | 62 (0.9) | 62 (1.0) | 89 (1.3) |
| Serratia spp. | 61 (1.7) | 100 (2.4) | 59 (1.4) | 77 (1.7) | 96 (2.1) | 65 (1.4) | 45 (0.9) | 82 (1.2) | 78 (1,2) | 95 (1.4) |
| Citrobacter spp. | 53 (1.4) | 49 (1.2) | 47 (1.1) | 38 (0.8) | 50 (1.1) | 45 (1.0) | 54 (1.1) | 60 (0.9) | 43 (0.7) | 70 (1.0) |
| M. morganii | 16 (0.4) | 15 (0.4) | 6 (0.1) | 1 (0.02) | 4 (0.1) | 2 (0.04) | 8 (0.1) | 13 (0.2) | 11 (0.2) | 45 (0.6) |
| Aeromonas spp. | 3 (0.08) | 8 (0.2) | 12 (0.3) | 9 (0.2) | 12 (0.3) | 8 (0.2) | 7 (0.1) | 16 (0.2) | 28 (0.4) | 46 (0.7) |
| Other | 119 (3.3) | 280 (6.8) | 248 (5.8) | 295 (6.5) | 262 (5.6) | 330 (7.2) | 296 (5.9) | 504 (7.5) | 366 (5.8) | 252 (3.5) |
The number before the brackets represents the total number of bacteria isolated, and the data in the brackets represent the percentage. The symbol “-” represents the empty set.