Across
- 2. ____ fever
- 5. new cases reduce to 0 in a certain area
- 6. needed for viral replication
- 8. viruses need a ____
- 9. 1918 pandemic
- 11. boosts antibody production
- 14. inactivate virus
- 15. protein coat
- 16. virus affects the world
- 17. genetic material
- 18. 2020 pandemic
Down
- 1. many sides
- 3. complete and permanent reduction to 0 new cases
- 4. 20 sides
- 7. ___ vaccine by Jonas Salk
- 10. commonly used image of a virus
- 12. messenger ___
- 13. virus affects a certain population