Across
- 2. Microscopic agent that enters and hijacks cells
- 5. Body temperature rises as a defense response
- 6. Easily spread from person to person
- 8. Tiredness caused by immune system activation
- 11. Muscle and joint discomfort during illness
- 12. Organ that becomes inflamed during infection
Down
- 1. Thick fluid produced in the airways
- 3. When microbes invade and multiply in the body
- 4. Pressure or pain felt in the skull
- 7. Discomfort in the throat when swallowing
- 9. Body system that fights off invaders
- 10. A reflex to clear the respiratory tract