Bacteria photos: Staphylococcus aureus

Staphylococcus aureus beta-hemolytic colonies on blood agar

Staphylococcus aureus colonies with beta hemolysis

Beta-hemolytic colonies of Staphylococcus aureus on CAP agar (blood agar with 5% of defibrinated sheep blood, colistin and aztreonam).
Cultivation 24 hours, aerobic atmosphere, 37°C.

On blood agar plates colonies of S.aureus frequently are surrounded by zones of clear hemolysis (beta-hemolysis).