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You dropped your 24-hour-old mannitol salt agar and macconkey agar plates of staphylococcus aureus. How would you visually be able to tell the difference now?

Sagot :

S.aureus on mannitol salt agar will have a yellow halo (fermentation), whereas the crystal violet on the MacConkey agar would inhibit its growth.

Staphylococcus aureus:

About 30% of people have a type of bacteria called Staphylococcus aureus in their noses. Staphylococcus often doesn't hurt anyone, although occasionally it might result in infections. These staphylococcus infections, which can be serious or lethal in healthcare facilities, include:

  • When bacteria enter the bloodstream, it is called bacteremia or sepsis.
  • Pneumonia is a disease that primarily affects persons with underlying lung conditions, especially those who are using mechanical ventilators.
  • Endocarditis is a heart valve infection that can cause heart failure or stroke.
  • Osteomyelitis is a bone infection that can be brought on by staphylococcus bacteria entering the circulation or by direct contact, such as after trauma (such as a foot puncture wound or IV drug usage).

Learn more about staphylococcus here:

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