On blood agar, Staphylococcus hominis typically shows growth as small to medium-sized colonies. These colonies are often round, smooth, and can be off-white or pale yellow.The bacteria may exhibit a non-hemolytic pattern, meaning they do not lyse red blood cells, so the agar surrounding the colonies remains unchanged in color. This characteristic helps differentiate S. hominis from hemolytic staphylococci, which can cause a clear zone around their colonies.
This growth pattern on blood agar is crucial for identifying S. hominis and understanding its role in infections, especially in clinical diagnostics. Accurate colony morphology assessment aids in differentiating it from other staphylococcal species and guides effective treatment strategies.
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