Across
- 5. y-shaped proteins that attack pathogens
- 8. make antibodies and destroy pathogens
- 10. virus or bacteria that can cause disease
- 11. protects the body against pathogens
- 12. disease caused by a virus; weakens immune system
Down
- 1. drugs used to fight bacterial infections
- 2. a type of allergy caused by dust
- 3. affects body's ability to control blood sugar
- 4. caused by an uncontrolled rate of cell division
- 6. protein "tag" that identifies a cell or virus
- 7. overreactions to a harmless substance
- 9. injection of dead or weakened pathogens