Across
- 4. surrounds and kills microorganisms
- 10. develops from bone marrow
- 11. resistance
- 12. protein produced by bodies immune system
- 14. -immunity caused by small exposers
- 17. medicine that kills viruses
- 20. fights viruses
Down
- 1. reproductive cycle
- 2. b cells and t cells are this
- 3. COVID-19 got a - that helped fend off the virus
- 5. an immunity that develops when a person's immune system responds to a foreign substance or microorganism
- 6. white blood cell that makes antibodies
- 7. infects from within
- 8. toxic substance that triggers immune response
- 9. COVID-19 is a ..
- 13. engulfs and surrounds bacteria
- 15. - resistant to a pathogen
- 16. helps stop a disease
- 18. cells that are apart of immune system
- 19. resistance to a pathogen/disease