Across
- 2. immunity you were exposed to
- 3. where an infectious agent lives
- 5. a widespread of diseases
- 8. the study of infections
- 9. the direct transfer of bacteria
- 10. # of people with the disease
- 12. unicellular organisms
- 15. white blood cells
- 16. is how it infects the host
- 18. immunity you were born with
- 19. infection-fighting blood cells
- 20. melindas bestfriend
Down
- 1. helps fight infection
- 4. spreads between animals and people
- 6. # of new cases of the disease
- 7. begins to fight infection
- 11. disease outbreak
- 13. cause of infection/disease
- 14. living thing that transmits a disease
- 17. infectious microbe containing nucleic acid