6.2 The emergence and re-emregence of pathogens

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Last updated 11:25 AM on 6/21/26
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10 Terms

1
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what is a disease ?

  • a condition in living animals and plants that impairs the normal functioning of an organ, system etc…

2
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what are non-infectious diseases?

can’t spread form affected to a healthy person

3
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what is an infectious disease?

transmits from affected person to a healthy person

4
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what are emerging diseases?

diseases caused by a newly identified or previously unknown agent

5
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what are re-emerging diseases?

reappearance of a know diseases after a significant decline in incidence

6
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what are endemic diseases?

constantly present in a population or region, with relatively low spread

7
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what are epidemic diseases?

sudden increases ni cases spreading though a large population

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what pandemic diseases?

sudden increases in cases across several places around the world

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how do diseases spread?

  • sexual transmission (syphilis)

  • aerosol (influenza)

  • vector borne (malaria)

  • food/waterborne (cholera)

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how do we respond to disease spreads?

  • behavioural modifications

  • eliminating vectors

  • travel restrictions

  • vaccine and treatment development

  • testing and genome (contact tracing)

  • quarantining and isolation (positive/ possible cases)