Lysogeny is Essential for the Virulence of Many Pathogenic Bacterial

Question

Lysogeny is essential for the virulence of many pathogenic bacterial strains.

Accepted Answer

Lysogeny allows for the integration of prophages (viral DNA) into the bacterial genome, which can confer new virulence factors and increase the pathogenicity of the bacterium.  Many pathogenic bacteria rely on these prophages for their virulence.