Across
- 2. tiny particle/living thing that causes disease
- 4. illness keeps body from feeling/working well
- 6. body's ability to diseases caused by germs
- 7. disease causing extremely weak immune system
- 10. medicine that helps to form antibodies
- 11. a sign of disease
- 13. disease caused by spreading of germs
Down
- 1. all parts/activities that fight disease
- 3. small particle that multiplies inside a cell
- 5. chemical made by the body to fight disease
- 8. a body's response to changes around you
- 9. one-cell living things
- 12. virus that attacks the immune system causes aids