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How do microorganisms, cellular and viral, interact with both human and non-human hosts in beneficial, neutral, or detrimental ways?

Topic

Systems

Framing Question

How do microorganisms, cellular and viral, interact with both human and non-human hosts in beneficial, neutral, or detrimental ways?

Learning Objectives

  • State two ways that the normal microbiota are beneficial to a human host.
  • Name two sites on the human body colonized by the normal microbiota, and give an example of the type of organisms found at those sites.
  • Describe at least two innate physical defenses in the human body that are used to fend off an infection.
  • Given a particular pathogen (symbiont), describe how it creates cell damage (benefits) in its host.
  • Compare and contrast commensal, symbiotic, and pathogenic relationships.
  • Explain what adaptations are necessary for a bacterium to survive in the respiratory tract, skin, intestinal tract, or urinary tract.
  • Describe how the human microbiome influences the host human organism.
  • Describe a situation that could lead to the normal microbiota causing disease.
  • Given a human defense, describe a mechanism that would allow a bacterial pathogen to evade it.

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