Table 2 Microbiological features of a case of K. pneumoniae-related pyogenic liver abscess
Isolates | Before treatment with imipenem | After treatment with imipenem |
|---|---|---|
Sensitive cKp isolate (mucoviscous colonies) | MDR cKp isolate (sticky mucoviscous colonies), E. coli, and Enterococcus sp. | |
Characteristics of K. pneumoniae Antibiotic resistance profile | Ampicillin (AMP) | Ampicillin (AMP), Ceftriaxone (CRO), Cefotaxime (CTX), Ceftazidime (CAZ), Cefepime (CPM), Aztreonam (ATM), Imipenem (IMI), Meropenem (MEM), Ertapenem (ERP), Gentamicin (CN), Amikacin (AK), Ciprofloxacin (CIP) |
Antibiotic resistance gene | blaSHV | blaTEM, blaSHV, blaCTX−M, and blaOXA−48 |
Virulence gene | entB, ybtS | entB, ybtS |
Capsular type | Non-K1/K2 | Non-K1/K2 |
Sequence type | ST54 | ST54 |
Biofilm (OD) | Strong (0.77) | Moderate (0.181) |
Efflux pump | No efflux pump | No efflux pump |
wzi gene expression (CT) | 29.87 | 23.12 |