Across
- 4. spreads to many countries
- 8. This family of related microbes
- 9. In isolation
- 10. Not showing any symptoms
- 11. Disease originally was detected in animal
- 12. Keep away from others (6,10)
Down
- 1. Show signs of illness
- 2. A sudden increase
- 3. The body's ability to resist
- 5. Outbreak of this plague
- 6. definitely got it (9,4)
- 7. A machine that supplies oxygen