Streptococcus pyogenes

**Definition:** A species of gram-positive, coccoid bacteria isolated from skin lesions, blood, inflammatory exudates, and the upper respiratory tract of humans. It is a group A hemolytic Streptococcus that can cause SCARLET FEVER and RHEUMATIC FEVER.

**Tree numbers:** - B03.353.750.737.872.575 - B03.510.400.800.872.575 - B03.510.550.737.872.575

**Synonyms:** - Streptococcus Group A