Abstract
Streptococcus sanguinis is an abundant commensal species in the oral cavity, capable of initiating the formation of dental biofilms. Bacteria of this species are commonly involved in cases of infectious endocarditis (IE) in susceptible individuals and are also detected in atherosclerotic plaques. Streptococcus sanguinis expresses three genes, spxB, swan, and nox, potentially involved in c…