| Virulence Factor |
Function |
| Capsule |
Antiphagocytic, evasion of immune recognition |
| Type 1 fimbriae |
Adhesion |
| P fimbriae |
Adhesion |
| Other fimbriae (S, F1C) |
Adhesion |
| Flagella |
Motility |
| Lipopolysaccharide |
Endotoxic |
| Outer membrane proteins (e.g. OmpA, IroN, FhuA, IutA) |
Receptors and membrane transporters |
| α-hemolysin |
Hemolysis |
| Cytolysins (CNF1, CDT) |
Cytotoxicity |
| Secreted autotransporter toxin |
Cytotoxicity |
| Siderophores (aerobactin, enterobactin) |
Iron scavenging |
|