Infection

?
Line of defences
Physical protective barriers and normal flora(non specific)
Immune and inflammatory systems
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4 stages of infection
1) colonisation
2)invasion
3) multiplication
4)spread
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4 stages from point of view of infected individual
1) incubation period
2)prodromal stage
3) invasion period
4) convalescence
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What is fever?
Pyrexia
The body temperature is being regulated at a higher level than normal
Nervous system feedbacks to hypothalamus which regulates body temp=body’s thermostat
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Pyrogens
A particular protein that causes increased on body temp- they reset the temperature in hypothalamus
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Exogenous pyrogens
Derived from outside host- external
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Endogeneous pyrogens
Produced by individual host- internal
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Classes of infectious microorganisms
1) bacterial infections
2) viral infection
3) fungal infection
4) parasitic and protozal infection
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Other cards in this set

Card 2

Front

4 stages of infection

Back

1) colonisation
2)invasion
3) multiplication
4)spread

Card 3

Front

4 stages from point of view of infected individual

Back

Preview of the front of card 3

Card 4

Front

What is fever?

Back

Preview of the front of card 4

Card 5

Front

Pyrogens

Back

Preview of the front of card 5
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