Across
- 2. unpleasant smell or vapour
- 3. medicines that treat infections by killing bacteria
- 5. black bile,yellowbile etc
- 6. not affected by a disease
- 8. heating liquid or food to kill microorganisms
- 10. slows down growth of microorganisms
- 11. can only be seen through a microscope
- 12. the romans built these
Down
- 1. heart monitor
- 4. injection of a weak form of the disease
- 7. powerful Xray provides cross section
- 9. immunity against disease