Which of the following is an opportunistic pathogen commonly present in the nasal cavity as a member of the microbiota? which of the following is an opportunistic pathogen commonly present in the nasal cavity as a member of the microbiota? staphylococcus aureus legionella pneumophilia bordetella pertussis pneumocystis jiroveci veillonella species

The correct answer is- Staphylococcus aureus

Explanation:

Staphylococcus aureus is a gram-positive bacteria commonly found in the nose and skin of humans. It resides in the nose as a member of the normal microflora of the nose.  

So when present as a member of microbiota it does not cause any disease but this species is opportunistic pathogen because it cause several diseases when our immune system does not function properly or when the immune system becomes weak.

It can cause illness like cellulitis, impetigo, toxic shock syndrome, sepsis, meningitis, bacteremia, etc. Therefore the right answer is-  Staphylococcus aureus

The correct answer will be option-Staphylococcus aureus

Explanation:

Humans are surrounded by the microorganisms around which can benefit us and also prove harmful to us as they cause disease to humans. Staphylococcus aureus is a pathogen which causes various human diseases.  

In the human body, the S. aureus colonizes the mucous membrane and the skin. One of the important niches of the S. aureus is the human nose in the vestibulum nasi.

Thus, Staphylococcus aureus is the correct answer.

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