Table 2.
Microbiological and molecular-epidemiological characteristics of K. pneumoniae strains isolated from KP-PLA patients
| Characteristic | Value (n = 163) |
|---|---|
| Hypermucoviscosity | 50 (30.7) |
| Capsular serotypes | |
| K1 | 66 (40.5) |
| K2 | 31 (19.0) |
| K5 | 8 (4.9) |
| K20 | 3 (1.8) |
| non-type | 54 (33.1) |
| Virulence genes | |
| aerobactin | 139 (85.3) |
| rmpA | 155 (95.1) |
| iroN | 40 (24.5) |
| kfuBC | 116 (71.2) |
| wcaG | 112 (68.7) |
| ybtA | 120 (73.6) |
| magA | 74 (45.4) |
| fimH | 156 (95.7) |
| mrkD | 163 (100.0) |
| uge | 147 (90.2) |
| entB | 144 (88.3) |
| ureA | 145 (89.0) |
| Antimicrobial resistance | |
| Ampicillin | 163 (100.0) |
| Ampicillin/sulbactam | 17 (10.4) |
| Piperacillin/tazobactam | 2 (1.2) |
| Cefazolin | 10 (6.1) |
| Cefotetan | 2 (1.2) |
| Aztreonam | 5 (3.1) |
| Ceftriaxone | 6 (3.7) |
| Ceftazidime | 3 (1.8) |
| Cefepime | 4 (2.5) |
| Cefoperazone/sulbactam | 0 (0.0) |
| Ertapenem | 3 (1.8) |
| Imipenem | 5 (3.1) |
| Ciprofloxacin | 5 (3.1) |
| Levofloxacin | 4 (2.5) |
| Gentamicin | 2 (1.2) |
| Tobramycin | 2 (1.2) |
| Amikacin | 1 (0.6) |
| SMZ-TMP | 6 (3.7) |
| Nitrofurantoin | 34 (20.9) |
| MDR strains | 12 (7.4) |
| CRKP strains | 6 (3.7) |
| Multilocus sequence typing | |
| ST23 | 63 (38.7) |
| ST29 | 10 (6.1) |
| ST65 | 14 (8.6) |
| ST86 | 10 (6.1) |
Values are presented as No. (%) of isolates
MDR Multi-drug resistant, CRKP Carbapenems-resistant K. pneumoniae, SMZ-TMP Sulfamethoxazole and trimethoprim