Across
- 2. a disease that can't spread to another person
- 6. the cells and tissues that recognize and attack foreign substances in the body
- 9. a reaction to a harmless or common substance by the body's immune system
- 10. a microorganism, another organism, a virus, or a protein that causes a disease
- 11. disease a disease in which the immune system attacks the organism's own cells
- 12. a white blood cell that makes antibodies
Down
- 1. a disease that can spread from person to person
- 3. the ability to resist an infection or disease
- 4. an immune system cell that coordinates the immune system and attacks infected cells
- 5. a protien made by B cells that binds to a specific antigen
- 7. a B-cell that responds more stronger than it did during it's first encounter with an infected cell
- 8. an immune system cell that engulfs pathogens and other material