Streptococcus anginosus group


Routine Practices
Routine Practices

General Information

Pathogen information

Gram positive cocci in chains, facultatively anaerobic, variable hemolysis.

Smells like butterscotch


Normal oral/GI flora, consists of S. anginosus, intermedius, and constellatus.

Used to be called S. milleri group.

Associated syndromes

  • ¬†Abscesses - intra-abdominal, hepatic, cerebral, empyema.

  • ¬†Bacteremia

  • ¬†Rarely endocarditis

Additional Information

When these organisms grow in blood culture, look for the abscess.

Generally abscesses need surgical drainage depending on size/location.