Across
- 2. The state of being protected against a particular disease.
- 4. Which can be decomposed.
- 6. A micro-organism that can cause disease.
- 7. They are considered as a border between living and non-living organisms.
Down
- 1. Diseases that can be passed from person to person.
- 3. A global outbreak of an infectious disease.
- 5. A person who takes care of cleaning.