Table 3.

Prevalence of virulence genes in E. colistrains isolated from the blood of cancer patients and the feces of healthy volunteers

Target geneNo. (%) of positive strains in:P valuea
Blood (n = 155)Feces (n = 70)
cnfI 37 (24)4 (6)<0.05
papC 58 (37)12 (17)<0.05
hlyC 40 (26)4 (6)<0.05
iut 73 (47)33 (47)NSb
  • a Chi-square test.

  • b NS, not significant.