Viridans Group (Streptococci)
Viridans group streptococci
Subgroups: S. mutans, S. salivarius, S. angionosus, S. mitis, and S. sanguinis.
– Fortunately, this group is mostly vulnerable to antibiotic treatments, although S. mitis is an important exception.
– Viridans group streptococci are associated with: Deep tissue abscesses (S. sanguinis); Bacteremia (S. mitis infection in cancer patients with neutropenia); Subacute endocarditis (S. mitis and S. salivarius); and, Dental caries (S. mutans).