Color development | Blue to light blue |
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Feature | All are Staphylococcus aureus. It develops blue to light blue. No additional culture is required. |
Color development | Blue to light blue: Staphylococcus aureus Black to gray: Other bacteria |
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Feature | The blue color is Staphylococcus aureus. In rare cases, some bacteria other than Staphylococcus aureus develop a black to gray color. |