Monday, August 23, 2010

Is there bacteria in your nose>?

There is bacteria everywhere in your body. Some of it is harmful, a lot of it is necessary for you to live.

Is there bacteria in your nose%26gt;?
There is bacteria in every opening of your body.
Reply:In spite of nasal cavity's impressive antimicrobial defenses, microorganisms do enter the upper respiratory system. Because it is warm, moist, and nutrient-rich it offers a favorable environment for their growth. Indeed, the upper respiratory system is densely colonized by commensal microorganisms, including streptococci, lactobacilli, and some Gram-negatives such as Moraxella catarrhalis. But that's as far as they normally get. In healthy people, the lower respiratory system (as well as the sinuses and middle ear) is sterile.


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