1.8 Changing Pathogens

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  • Created by: Twins 1&2
  • Created on: 04-03-13 17:53

1.8 Changing Pathogens

  • Some pathogens , particulaly viruses, can mutate (change) resulting in a new from called a mutation.
  • Few people are immune to these changes so disease can spread quickly.
  • Diseases that spread within a country are called an epidemic. Those that spread across counries are called pandemics.


MRSA is the acronym for 'methicillin-resistant Staphylococcus aureus'. It's very dangerous because it's a strain of bacterium that is resistant to most antibiotics. To slow down or stop the development of other strains of resistant bacteria, we should always:

  • avoid the unnecessary use of antibiotics
  • complete the full course.
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