The Body's immune System

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Across
  1. 2. a preparation that helps your body to fight disease and produce immunity
  2. 3. disease of the small intestine causing severe diarrhoea
  3. 5. the way we understand something
  4. 8. prevents bacteria from getting into the body
  5. 9. produce sporozoites which are passed to human host
  6. 13. a protein formed in the body that fights against disease
  7. 15. a microscopic living organism
  8. 17. to resist or drive away
Down
  1. 1. anything that causes a disease
  2. 4. a virus or bacteria is deliberately given to you
  3. 6. feeling very cold
  4. 7. travels to the liver and produce merozoites
  5. 10. an antibody test
  6. 11. this shows if something is present
  7. 12. HIV is transferred when infected blood from one person comes into contact with an open cut or wound
  8. 14. produces white blood cells
  9. 16. filters blood and removes old or damaged blood cells from the body