Across
- 2. the ability to resist or recover from an infectious disease.
- 3. an organism, a virus, or a protein that causes disease.
- 6. Diseases that are caused by hereditary or environmental factors are called
- 11. attack infected body cells by attaching to specific antigens
- 12. disease A disease that is caused by a pathogen is called an
- 13. is a drug that destroys viruses or prevents their replication.
Down
- 1. made up of tissues and specialized white blood cells that recognize and attack foreign substances in the body.
- 4. a specialized protein that binds to a specific antigen to tag it for destruction.
- 5. a white blood cell that destroys pathogens by engulfing and digesting them.
- 7. that is introduced into the body to produce immunity.
- 8. make antibodies that attach to specific
- 9. a medicine used to kill or slow the growth of bacteria and other microorganisms, such as fungi.
- 10. a substance prepared from killed or weakened