TABLE 1.
Infection sites, serotypes, STs, virulence assay characteristics, and virulence-associated genotypes for 11 isolates of K. pneumoniae.
| Isolate | KP29198 |
KP46050 |
KP46748 |
KP31319 |
KP48273 |
KP46615 |
KP48359 |
KP42223 |
KP47507 |
KP42388 |
KP39929 |
| Source of infection | Intracranial | Bloodstream | Liver abscess | Knee | Abdominal | Abdominal | Bloodstream | Abdominal | Bloodstream | Abdominal | Bloodstream |
| KPC-2 | + | − | − | + | + | − | − | + | − | + | + |
| MDR | − | − | − | + | + | − | − | + | − | + | + |
| K-Locus | KL1 | KL1 | KL1 | KL16 | KL16 | KL2 | KL2 | KL20 | KL20 | KL24 | KL24 |
| MLST | ST1660 | ST23 | ST23 | ST660 | ST660 | ST86 | ST65 | ST268 | ST268 | ST15 | ST15 |
| String test | + | + | + | − | − | + | + | + | − | − | − |
| Spin test | 33.4% ± 2.2% | 55.6% ± 2.3% | 58.4% ± 1.8% | 20.6% ± 2.2% | 20.8% ± 0.7% | 52.7% ± 7.3% | 40.4% ± 5.7% | 18.6% ± 2.1% | 22.5% ± 4.5% | 19.5% ± 2.2% | 20.1% ± 1.6% |
| Serum survival | 81% | 96% | 1.2% | 93% | 59% | 93% | 68% | 71% | 16% | 69% | 60% |
| G. mellonella survival (24 h) | 97% | 90% | 97% | 70% | 67% | 70% | 20% | 17% | 90% | 60% | 37% |
| Aerobactin | + | + | + | + | + | + | + | + | + | + | + |
| Salmochelin | + | + | + | − | − | + | + | + | + | − | − |
| Yersiniabactin | + | + | + | + | + | + | + | + | + | + | + |
| Colibactin | + | + | + | − | − | − | + | + | + | − | − |
| rmpA | + | + | + | − | − | + | + | + | + | − | − |
| rmpA2 | FS* | + | FS | FS | FS | + | FS | FS | FS | FS | FS |
| peg-344 | + | + | + | − | − | + | + | + | + | − | − |
*FS indicates the presence the gene albeit with a frameshift mutation, likely engendering a non-functional protein.