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Diseases

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  • An object that stops things getting through or past it.
    barrier
  • a substance that keeps insects away
    repellent
  • Keeping yourself and the things around you clean
    hygiene
  • protection against something
    defence
  • the living thing that a parasite infects
    host
  • A sticky substance found in our noses, windpipe and other air passages
    Mucus
  • living things that spread diseases but do not get the diseases themselves
    vectors
  • any living thing that lives on or in the body of another living thing
    parasite
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