Viridans group streptococcal infection

The viridans group streptococci (VGS), a heterogenous group of streptococcal species, are the predominant species of the human oral flora and commonly inhabit other areas of the upper respiratory, gastrointestinal, and female genital tracts. VGS are usually organisms of low virulence. However, VGS are a major cause of sepsis and pneumonia in neutropenic individuals, and an important cause of sepsis and meningitis in neonates. These organisms are also occasional pathogens in healthy children and adults, causing infections such as subacute endocarditis. Although VGS resistance to penicillin and the macrolide-lincosamide-streptogramin B (MLS) drugs is an evolving problem, several drugs remain uniformly active against the VGS. Thus far, VGS resistance to vancomycin, linezolid, and daptomycin remains extremely rare.

Bacterial infectious disease

Streptococcus mitis
Streptococcus pseudopneumoniae [GN:std]
Streptococcus sanguinis [GN:ssa]
Streptococcus parasanguinis [GN:scf]
Streptococcus gordonii [GN:sgo]
Streptococcus constellatus [GN:scg scon scos]
Streptococcus ilei [GN:sig sip]
Streptococcus intermedius [GN:sib siu]
Streptococcus anginosus [GN:sang sanc sans]
Streptococcus mutans [GN:smu smc smut smj]
Streptococcus sobrinus
Streptococcus salivarius [GN:ssr stf]
Streptococcus vestibularis
Streptococcus thermophilus
Streptococcus equinus
Streptococcus gallolyticus [GN:sga sgg sgt]
Streptococcus infantarius

PMID:20810781

PMID:10720803

PMID:17588233