Across
- 2. A virus that affects the immune system
- 6. A protective layer that makes Mucous
- 7. Having a bad reaction to something
- 9. A medical doctor who treats patients
- 12. A virus that affects the liver
- 13. The way disease spreads
- 14. A tiny organism that can cause a disease
- 15. Liquids made by the body
- 16. A shot that helps protect you from diseases
- 17. A written or spoken account of something
Down
- 1. Tiny germs that can be found everywhere
- 3. Infectious agents that need a host to multiply.
- 4. The biggest organ covering the body
- 5. An action or series of actions taken to change something
- 8. A soap that helps kill germs
- 10. Made visible or Uncovered
- 11. Signs that show you are sick