Colin's immune system crossword puzzle

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Across
  1. 1. happens when germs like bacteria and fungi develop the ability to defeat the drug designed to kill them
  2. 4. cells tailor-made to get rid of the specific microorganisms that have invaded your tissue.
  3. 5. mean by which the body is given immunity to a disease by intentional exposure to small quantities of it.
  4. 11. helps the body fight infection and other diseases and is a type of blood cell
  5. 13. the first line of defense
  6. 17. an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host.
  7. 18. A type of white blood cell.They help protect the body from infection and may help fight cancer. Also called T lymphocyte and thymocyte.
  8. 19. microscopic organisms not visible with the naked eye.
  9. 20. a microscopic organism, especially a bacterium, virus, or fungus.
Down
  1. 2. nonspecific resistance that destroys invaders in a generalized way without targeting specific individuals
  2. 3. A type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.
  3. 6. a type of cell within the body capable of engulfing and absorbing bacteria and other small cells and particles.
  4. 7. A complex network of cells, tissues, organs, and the substances they make that helps the body fight infections and other diseases
  5. 8. the most common type of blood cell and the vertebrate's principal means of delivering oxygen to the body tissues
  6. 9. protein used to fight off harmful substances in your body.
  7. 10. a compound or preparation used for the treatment or prevention of disease, especially a drug or drugs taken by mouth.
  8. 12. a type of white blood cell in the immune system of most vertebrates.include natural killer cells, T cells, and B cells.
  9. 14. medicine taking to rid yourself of a bacterial infection
  10. 15. treatment with a vaccine to produce immunity against a disease; inoculation.
  11. 16. A type of white blood cell that makes antibodies