Skip to main content

Table 3 Distribution of virulence factors in carbapenem resistant and susceptible K. pneumoniae strains

From: Co-existence of virulence factors and antibiotic resistance in new Klebsiella pneumoniae clones emerging in south of Italy

Virulence factors Locus-Genes K. pneumoniae CR
n (%)
K. pneumoniae CS
n (%)
P value
Type 3 fimbries mrk operon 25 (100%) 25 (100%) 1.000
Capsule wzi 25 (100%) 23 (92%) 0.552
Iron acquisition systems ybt operon 10 (40%) 15 (60%) 0.089
Aerobactin iron acquisition siderophore
(iucABCD)
3 (12%) 3 (12%) 1.000
Klebsiella
Ferric ionic-uptake system
(kfuABC)
1 (4%) 7 (28%) 0.020
Two-component system kvgAS 1 (4%) 7 (28%) 0.020
Bacteriocin Microcin E492 1 (4%) 7 (28%) 0.020