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Questions and Answers
What is the role of resident flora in preventing colonization by pathogens?
What is the role of resident flora in preventing colonization by pathogens?
Competition for receptors on host cells, inhibition by toxic products or bacteriocin production, and other mechanisms.
Which normal flora, when disturbed, can lead to UTI?
Which normal flora, when disturbed, can lead to UTI?
E. coli (normal flora of the intestine).
Give an example of normal flora causing disease due to changes in their normal habitat.
Give an example of normal flora causing disease due to changes in their normal habitat.
Viridans streptococci (normal flora of the URT) causing infective endocarditis in predisposed heart.
How can disturbance of resident flora occur?
How can disturbance of resident flora occur?
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What does the term 'normal flora' refer to?
What does the term 'normal flora' refer to?
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