Immune system

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Across
  1. 2. a network of cells in order to help the body fight infections
  2. 3. a type of white blood cell that makes antibodies
  3. 4. the body is given immunity to a disease by exposing small quantities
  4. 7. infects cells and can cause a disease
  5. 9. cells made to get rid of certain microorganisms that have invaded someone's tissue
  6. 10. introducing it to the body to produce protection to a disease
  7. 14. triggers the immune system to produce antibiotics to a certain disease
  8. 15. when an antibiotic does not work at killing a virus or bacteria
  9. 16. any substance that makes an immune response against that substance
  10. 17. a drug used to treat infections
  11. 18. a group of cells that work together to protect the body
  12. 19. part of the immune system that develop from stem cells in the bone marrow
  13. 20. chemical barriers that are ready to protect the body
Down
  1. 1. when someone is given antibiotics to a disease
  2. 5. immune cell made in the bone marrow
  3. 6. removes dead cells and can kill microorganisms
  4. 8. immunity when infected with the actual disease
  5. 11. a protein that is made by plasma cells
  6. 12. a process in which a virus can predicate its DNA
  7. 13. the reproduction of viruses and then they burst out into the cell