streptokokki
Streptococcus is a genus of Gram-positive cocci that typically occur in chains or pairs. They are facultative anaerobes and non–spore-forming, commonly colonizing the human throat, skin, and other mucosal surfaces. Classification relies on hemolysis patterns on blood agar and, for many species, the Lancefield serogroups (A, B, C, D, and others).
Among the best known groups are Streptococcus pyogenes (group A), Streptococcus agalactiae (group B), and Streptococcus
Viridans streptococci are part of the normal oral flora but can contribute to dental caries and, in
Diagnosis typically involves Gram staining and culture on blood agar to assess hemolysis, complemented by Lancefield