Bacterial virulence factors

Virulence is a feature of bacteria that expresses the level of pathogenicity. Pathogenicity is the ability of a bacterium to damage a host cell.

Virulence factors include:
 * 1) adhesins - allow bacteria to attach to host cells,
 * 2) invasins - help with the penetration of bacteria into the cells and tissues in the host,
 * 3) impedines
 * 4) modules.