Immune System and Disease Crossword

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Across
  1. 3. chemical compounds that are known to cause cancer
  2. 7. injection of a weakened form of a pathogen to produce immunity
  3. 10. proteins that recognize and bind to antigens
  4. 11. anything that increases the chance of disease or injury
  5. 13. the chemicals that the activated mast cells release
  6. 14. any change in the body, other than an injury, that disrupts the normal functions of the body
  7. 16. animals that carry pathogens from person to person
Down
  1. 1. common overreactions of the immune system to antigens
  2. 2. viruses, bacteria, and other pathogens may serve as antigens
  3. 4. compounds that kill bacteria without harming the cells of the human or animal hosts
  4. 5. increased body temperature
  5. 6. disease causing agents
  6. 8. formation of a mass of growing tissue
  7. 9. chronic respiratory disease in which the air passages become narrower than normal
  8. 12. group of proteins that help
  9. 15. fighting the infection through the production of cells that inactivate foreign substances or cells