Microbiology

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What is Virulence?
the ability to generate infection (physiology of pathogen and host)
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what is an opportunist bacteria?
only cause infection in those with a weakened immune system (low pathogenicity)
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What stages must a pathogen complete to cause an infection?
gain access to host tissues, move to a favourable site, successfully multiply, reproduce
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Portals of pathogen entry?
inhalation, ingestion, urogenital tract, inoculation, vertical transmission
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viral pathogenicity?
direct cytoplasm effect (injury to cell membrane), immune response (cause new antigens on surface, viral genes enter hosts chromosomes and alter behaviour
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What can bacteria do that viruses can't?
replicator's outside host cells
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What do viruses have?
high tissue specificity
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another word for tissue specificity?
tropism
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Other cards in this set

Card 2

Front

what is an opportunist bacteria?

Back

only cause infection in those with a weakened immune system (low pathogenicity)

Card 3

Front

What stages must a pathogen complete to cause an infection?

Back

Preview of the front of card 3

Card 4

Front

Portals of pathogen entry?

Back

Preview of the front of card 4

Card 5

Front

viral pathogenicity?

Back

Preview of the front of card 5
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