Across
- 2. You can spread disease when you do this.
- 3. Makes an illness better.
- 4. A liquid used to vaccinate people.
- 7. A living thing that can be visible or microscopic.
- 9. A disease caused by a virus.
- 10. Your body's system to protect you against disease.
- 11. These are produced by white blood cells to destroy bacteria and viruses.
Down
- 1. A kind of drug that can kill bacteria but not viruses.
- 2. One kind of micro-organism that can cause infection.
- 5. Your blood has white ones to protect you against diease.
- 6. This can kill bacteria and prevent food poisoning.
- 8. The first barrier against microbes.