Table 1 Occurrence of virulence factors in E. coli pathotypes
Virulence factors | Pathotype | |||
|---|---|---|---|---|
Non-pathogenic E. coli* | Diarrhea-associated E. coli** | ExPEC*** | ||
n = 399 (%) | n = 179 (%) | n = 603 (%) | ||
Aggregative adherence plasmid | pCVD432 | - | 13 (7.3) | - |
Invasive associated locus | ial | - | 44 (24.6) | - |
Heat-stable enterotoxin | st | - | 8 (4.5) | - |
Heat-labile enterotoxin | lt | - | 7 (3.9) | - |
Intimin | eaeA | - | 26 (14.5) | - |
Bundle-forming fimbriae | bfpA | - | 1 (0.6) | - |
Invasion plasmid H | ipaH | - | 19 (10.6) | - |
Aerobactin synthesis | aer | - | 68 (38.0) | 342 (56.7) |
Fimbriae type 1 | fimA | 336 (84.2) | 149 (83.2) | 553 (91.7) |
α-hemolysin | α-hly | - | 3 (1.7) | 88 (14.6) |
Afimbrial adhesin | afaI | - | 78 (43.6) | - |
Aerobactin synthesis | iucC | - | 80 (44.7) | 396 (65.7) |
Cytotoxic necrotizing factor | cnf1 | - | 1 (0.6) | 43 (7.1) |
S-fimbriae | sfa | - | 6 (3.4) | 227 (37.6) |
P-fimbriae | pap | - | 19 (10.6) | 201 (33.3) |
Shiga-toxin 1 | stx1 | - | - | - |
Shiga-toxin 2 | stx2 | - | - | - |
Enterohemolysin | ehly | - | 9 (5.0) | - |