Across
- 3. a group of lung diseases
- 4. found mainly in cattle
- 6. caused by a poor diet
- 8. another name for Vitamin B-3
- 9. it is the common cause of dementia
- 11. complication of chicken pox
- 12. a gradual decline in the body functions
- 13. the number of new cases of a disease
Down
- 1. rate number of people who die
- 2. autoimmune disease
- 5. people with a disease at a certain time
- 7. characterized by episodes
- 10. chickenpox virus