Immunity

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Across
  1. 4. Protein which neutralises pathogens
  2. 5. An organism that causes disease
  3. 7. An injection of dead or weakened pathogen
  4. 8. A cell which can ingest and absorb pathogens
  5. 11. A reaction of the immune system to a foreign substance which is usually harmless
  6. 12. A type of immunity where an individual receives antibodies from an external source such as breast milk
  7. 13. A non-living pathogen
Down
  1. 1. The body's first line of defence against pathogens
  2. 2. A type of immunity which occurs due to a large percentage of a population becoming immune
  3. 3. A cell which produces antibodies
  4. 4. Medicine used to help kill bacteria
  5. 6. A virus which mutates very quickly and damages an individual's immune system
  6. 9. Protein found on the surface of pathogens which antibodies can attach to
  7. 10. Living pathogens