Non-Beta-Hemolytic Streptococci

∞ generated and posted on 2015.12.30 ∞

Gram-positive, aerotolerant anaerobic cocci not able to form clear zones when grown on blood agar (specific epithet of important member = pneumoniae); important cause of pneumonia.

Of medically relevant streptococci, the most important of the Non-Beta Hemolytic Streptococci are the alpha-hemolytic streptococci, notably Streptococcus pneumoniae but also "Streptococcus viridans", contrasted of course with beta hemolytic streptococci.

See Alpha hemolysis (α hemolysis) but also Beta hemolysis (β hemolysis). See Streptococcus, Streptococcus pneumoniae (a.k.a., pneumococcus), and also "Streptococcus viridans". Contrast with Beta hemolytic streptococci.