Immune System

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Across
  1. 3. Name for the virus that causes AIDS
  2. 6. ___ shock: severe reaction to an allergen; may result in death
  3. 9. Weakened or dead form of a disease
  4. 11. Any substance the body cannot recognize
  5. 12. When a disease affects an unusual number of people in a region at the same time
  6. 13. Infection of the immune system caused by HIV
  7. 15. When a disease is prevalent throughout the world
  8. 17. Swelling and redness at the site of an infection
  9. 19. When a disease is at a constant, “normal” occurrence
  10. 21. ____ contact: being near an infected person who sneezes without covering their mouth
  11. 23. Sweat and oil on your skin are slightly _____, preventing some pathogens from growing
  12. 24. ____Line of defence; includes skin and the linings of body systems
Down
  1. 1. Unusually high sensitivity to some substance
  2. 2. Immune response that is quick, general and non-specific
  3. 3. Chemical the body releases to fight invaders such as allergens
  4. 4. Process of receiving a vaccine
  5. 5. White blood cells that search for invader cells and swallows them
  6. 7. Drug used to treat allergies
  7. 8. ____ T cells: activate in the presence of antigens and signal B cells to make antibodies
  8. 10. The severity of a disease caused by a virus
  9. 14. Any substance that causes an allergic reaction
  10. 16. Disease-causing invader, or “germ”
  11. 18. ____ T cells: destroy the body’s own cells that are infected by viruses, bacteria, or cancer
  12. 20. ____ contact: shaking hands, or sharing drinking containers
  13. 22. Cells that produce antibodies