Across
- 7. Organisms only seen under a microscope
- 9. Length of time a disease can be spread
- 11. Highly communicable viral disease
- 12. One-celled organisms
- 13. Substance that send immune system into action
Down
- 1. Body's response to injury or disease cause swelling, heat, and redness
- 2. Bacterial disease in the lungs
- 3. Your bodies defense system
- 4. Disease that can be spread from person to person
- 5. Serious inflammation in the lungs
- 6. The ability to spread to others
- 8. Dead or weakened pathogens used to build immunity
- 10. Germs entering the body and multiplying