Table 3.
Prevalence of virulence, adhesion, and iron acquisition genes in 64 intestinal E. coli strains
| Gene or operon | Description | Total Prevalence [%] |
|---|---|---|
| Virulence gene | ||
| stx1 | shigatoxin 1 | 0 |
| stx2 | shigatoxin 1 | 0 |
| eae | intimin | 0 |
| sta | heat-stable enterotoxin | 0 |
| F41 | fimbriae F41 | 0 |
| K99 | fimbriae K99 | 0 |
| Adhesins | ||
| afa/draB | Afimbrial/Dr antigen-specific adhesion | 0 |
| crlA | curli fibre gene | 92.2 |
| fimC | Type 1 fimbriae | 78.1 |
| hra | Heat-resistant agglutinin | 6.3 |
| papC | Pilus associated with pyelonephritis | 1.6 |
| sfa/foc | S fimbriae and F1C fimbriae | 1.6 |
| tsh | Temperature-sensitive haemagglutinin | 3.1 |
| Iron acquisition | ||
| chuA | Heme receptor gene | 6.3 |
| fyuA | Ferric yersinia uptake | 10.9 |
| ireA | Iron-responsive element | 1.6 |
| iroN | Catecholate siderphore | 3.1 |
| iucD | Aerobactin synthesis | 4.7 |
| sitD chr. | Salmonella iron transport system gene | 1.6 |
| sitD ep. | Salmonella iron transport system gene | 4.7 |