Biology Forum Microbiology Gram-positive virulation and biofilm formation

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      Hi. I have been making research regarding Gram-positive bacterial pili in S. pyogenes and S. pneumoniae.

      I was wondering if someone could help me with this question:
      Are there any morphological differences between the lower part of the respiratory tract and the nasopharynx? Maybe they have different epithelia with crude or soft properties?

      I am standing the flexibility of the bacterial pili and i was wondering if i could substantiate that in order for a bacterium to colonize the nasopharynx epithelia (mucus) should be more flexible than colonizing the lower parts of the respiratory tracts.

      Thank you all in avdance 🙂

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