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