Micro-organisms and disease

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