Streptococcus anginosus
| Streptococcus anginosus | |
|---|---|
| Cultures of Streptococcus anginosus on blood agar | |
| Scientific classification | |
| Domain: | Bacteria | 
| Kingdom: | Bacillati | 
| Phylum: | Bacillota | 
| Class: | Bacilli | 
| Order: | Lactobacillales | 
| Family: | Streptococcaceae | 
| Genus: | Streptococcus | 
| Species: | S. anginosus | 
| Binomial name | |
| Streptococcus anginosus (Andrewes and Horder 1906) Smith and Sherman 1938 (Approved Lists 1980) | |
Streptococcus anginosus is a species of Streptococcus. This species, Streptococcus intermedius, and Streptococcus constellatus constitute the anginosus group, which is sometimes also referred to as the milleri group after the previously assumed but later refuted idea of a single species Streptococcus milleri. Phylogenetic relatedness of S. anginosus, S. constellatus, and S. intermedius has been confirmed by rRNA sequence analysis.