Across
- 3. The body's response causing redness, heat, and swelling.
- 6. A bacterial respiratory infection.
- 8. Single-celled parasites that feed on tissue.
- 10. A secretion that traps pathogens.
- 12. A viral disease spread by animal bites.
- 13. Immunity Short-term immunity received from another source.
- 14. Single-celled organisms, some of which cause diseases.
- 15. Mark invaders for destruction in the immune system.
- 17. Needs a host to survive and reproduce.
- 18. A physical barrier in nonspecific immunity.
Down
- 1. Bacteria that live in cells and spread via ticks and lice.
- 2. A viral infection causing rash and fever.
- 4. Immunity Long-term immunity gained through exposure.
- 5. A bacterial disease causing severe diarrhea.
- 7. Inflammation of the brain, often caused by infection.
- 9. Immune cells that kill infected cells.
- 11. A response that helps isolate infection.
- 16. Includes molds, yeasts, and spores.