Herd Immunity Crossword

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Across
  1. 3. causes disease
  2. 5. can indicate possible disease
  3. 6. severity of disease
  4. 8. white blood cell
  5. 10. non-living and prone to mutation
  6. 12. rare pathogen consisting of infectious protein
  7. 13. artificially induces the immune response
  8. 14. ____ immunity protects entire populations from infection
  9. 15. _______ immunity is also known as antibody-mediated immunity
Down
  1. 1. treats disease
  2. 2. the _____ immune system is the first line of defense against pathogens
  3. 4. the _______ immune system "remembers" pathogens so we get less sick in the future
  4. 7. chemical messenger of the immune system
  5. 9. an antibody binds to this
  6. 11. disease that was eliminated by herd immunity