BACTERIAL VIRULENCE FACTORS ADHESION EXOTOXIN CAPSULE VIRULENT SURFACE PROTEINS VIRULENGE PLAMID E VIRULENT ENZYME BINDING PROTEIN LPs FLAGELLA Environmental signals often control the expression of the virulence genes Common signals include: Temperrature/ron availability: C diphtheriae Alow ion/Osmolality/Growth phase/pH/Specific ionsEnvironmental signals often control the expression of the virulence genes. Common signals include:Temperrature/Iron availability : C diphtheriae /low ion/Osmolality /Growth phase/pH/Specific ions BACTERIAL VIRULENCE FACTORS