Streptococcus anginosus group


Standard Precautions
Standard Precautions

General Information

Pathogen information

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


Normal oral/GI flora.

Consists of S. anginosus, S. intermedius, and S. constellatus.

Associated syndromes

Abscesses - intra-abdominal, hepatic, cerebral, empyema.

Bacteremia, rarely endocarditis.

Additional Information

If identified in blood culture, look for an underlying abscess.