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Table 4 The association between virulence factors and C3-dependent internalisation in blood isolates.

From: Synergy between type 1 fimbriae expression and C3 opsonisation increases internalisation of E. coli by human tubular epithelial cells

Bacterial virulence factors Strains demonstrating C3 -dependent internalisation Strains not demonstrating C3-dependent internalisation Fischer's exact test
Type 1 fimbriae 3/3 (100%) 2/12 (16.7%) P = 0.0338
P fimbriae 2/3 (66.7%) 7/12 (58.3%) nsd
CNF1 2/3 (66.7%) 2/12 (16.7%) nsd
Serum resistance 3/3 (100%) 12/12 (100%) nsd
Haemolysin 2/3 (66.7%) 6/12 (50.0%) nsd
  1. The strength of association between virulence factors and C3-dependent internalisation in blood isolates was determined using Fischer's exact test.