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Across
  1. 5. Microorganisms that cause diseases to animals and humans
  2. 7. T Cells that kill pathogen infected host cells
  3. 8. The most number of white blood cell in our body
  4. 9. The condition where your injured wound is red and swollen
  5. 10. Another word for white blood cells
Down
  1. 1. Foreign substances that can trigger our immune responses
  2. 2. The immunity that is activated when our innate immunity fails to eliminate the pathogen
  3. 3. The action of a cell engulfing microbes or other foreign materials
  4. 4. It helps to neutralise any foreign invaders and is specific in its action
  5. 6. T Cells that activate B cells, macrophages and cytotoxic T cells