Diseases and immunity

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Across
  1. 1. A substance containing weakened, dead, or antigen material from a pathogen.
  2. 6. A medicine that kills bacteria or stops them reproducing.
  3. 7. The entry and multiplication of a pathogen in the body.
  4. 8. A physical barrier that blocks pathogen entry.
  5. 10. A condition that affects normal body function.
  6. 12. Transmission by physical contact, blood, or body fluids.
  7. 14. A type of white blood cell that produces antibodies.
  8. 15. An organism that a pathogen lives in or on.
  9. 17. The spread of a pathogen from one host to another.
  10. 20. Tiny hair-like structures that move mucus and trapped pathogens out of the airways.
  11. 21. Giving a harmless form of a pathogen or its antigens to stimulate immunity.
  12. 22. Easily spread from one person to another.
  13. 24. A long-lived lymphocyte that allows a faster immune response on second exposure.
  14. 26. The structure formed when an antibody binds to its matching antigen.
  15. 27. The process by which phagocytes engulf and destroy pathogens.
  16. 28. A protein made by lymphocytes that binds specifically to an antigen.
  17. 29. A disease caused by a pathogen that can be passed from one host to another.
  18. 30. A molecule, usually on the surface of a pathogen, that triggers an immune response.
  19. 31. The ability of the body to resist infection by a pathogen.
Down
  1. 2. Protection gained when the body makes its own antibodies after infection or vaccination.
  2. 3. A white blood cell that engulfs and digests pathogens.
  3. 4. A disease that cannot be passed from one person to another.
  4. 5. A sticky substance that traps pathogens.
  5. 7. Transmission through contaminated surfaces, food, water, air, or vectors.
  6. 9. A body defence that prevents pathogens entering the body.
  7. 11. A substance that neutralises toxins made by pathogens.
  8. 13. The ability to defend against disease or infection.
  9. 16. The fact that one antibody fits one particular antigen.
  10. 18. A disease-causing organism or particle.
  11. 19. An organism that carries a pathogen from one host to another.
  12. 23. When enough people are immune that disease spread is reduced.
  13. 25. Protection gained by receiving antibodies from another source.