Across
- 3. Organism that can carry a disease parasite
- 5. Enforced isolation of infected individuals
- 8. Type of immune response brought about by first exposure to an antigen
- 9. Dummy drug
- 11. Found on the surface of pathogens
- 12. Response to a needle breaking the skin, for example
- 13. Type of cell that can cause an autoimmune disease
- 14. Type of cell which produces antibodies
- 16. Programmed cell death
- 19. Substance added to a vaccine to enhance the immune response
- 20. Enzyme found in a phagocyte
Down
- 1. Infectious disease that regularly occurs in an area
- 2. If contaminated, this can lead to infection
- 4. Worldwide epidemic
- 6. This protects against entry of pathogens
- 7. This can provide active immunity
- 9. Non-specific response where pathogens are engulfed
- 10. Created when a lymphocyte binds to an antigen
- 15. Cell-signalling molecule
- 17. Virus that attacks lymphocytes
- 18. Develops when B lymphocytes respond to harmless substances