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Staphylococcus aureus colonies on blood agar, beta-hemolysis
microscope picture Gram-positive cocci

Staphylococcus aureus

Staphylococcus aureus, Columbia agar with 5% defibrinated sheep blood. Cultivation 24 hours, aerobic atmosphere, 37°C. Colonies in this strain are surroundend by a wide zone of beta-hemolysis and have only a weak yellow pigmentation.

Gram-positive cocci, nonmotile, tend to be arranged in grape-like clusters.