Across
- 2. Low levels of oxygen in the blood
- 5. A common name for a respiratory infection.
- 9. Easily spread from one dog to another
- 11. The immune system attacks its own cells
- 13. Medication to treat bacterial infections
- 14. An infection of the lung
- 17. A fatal viral infection that affects the nervous system
- 18. Parasite living on the exterior of the host
- 19. Overactive thyroid gland
Down
- 1. High blood sugar
- 3. Excessive thirst
- 4. Cancer spreading to other parts of the body
- 6. An organism that carries disease
- 7. Abnormal cell growth
- 8. Cancer of the bone
- 10. Elevated bodily temperature
- 12. Low red blood cell count
- 15. A degenerative joint disease
- 16. Single-celled organisms