Pathogens

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  • Created by: Sunset
  • Created on: 27-12-13 11:14
What is an outbreak of a disease that affects a large number of people in one country called?
Epidemic
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What is an outbreak of a disease that affects large numbers of poeple in different countries called?
Pandemic
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Why do resistant pathogens spread?
Aren't killed by antibiotics, so they reproduce and their numbers increase
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How does a vaccination work?
Contains dead/weakened pathogen & antigen, white blood cells destroy vaccination and memory cells are made so that antibodies are rapidly produced if reinfected (before disease caused)
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How does the body stop pathogens entering the body through direct contact?
Skin - impermeable barrier
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How does the body stop pathogens entering the body through breathing?
Ciliated cells - catch pathogens in mucus and brush mucus out
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What causes the symptoms of a disease?
Toxins
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Which cells in the body defend against pathogens?
White blood cells
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Why should you always finish your course of antibiotics
Ensure all pathogens have been killed; to prevent pathogens mutating and becoming resistant
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Why can't antibiotics kill viruses?
Viruses are in your cells
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How do viruses cause disease?
Enter and take over cells, tells cell to make viruses, cell bursts and releases viruses
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What does innoculate mean?
Make someone immune to a disease by injecting them with a vaccine
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Card 2

Front

What is an outbreak of a disease that affects large numbers of poeple in different countries called?

Back

Pandemic

Card 3

Front

Why do resistant pathogens spread?

Back

Preview of the front of card 3

Card 4

Front

How does a vaccination work?

Back

Preview of the front of card 4

Card 5

Front

How does the body stop pathogens entering the body through direct contact?

Back

Preview of the front of card 5
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