Across
- 3. protein that acts against a specific antigen
- 5. Disease spread from one living organism to another
- 7. disease outbreak that affects many people in the same place
- 8. infection of the lungs in which the air sacs fill with pus
- 11. Global outbreak of an infectious disease
- 12. scarring of the liver
- 16. can trigger an immune response
- 17. Membrane lining of various body cavities including nose, ears, and mouth
- 18. organism that carries and transmits the pathogen to humans or other animals
Down
- 1. single cell microorganisms that live almost everywhere on earth
- 2. yellowing of the skin and eyes
- 4. Tract passageway that makes breathing possible
- 6. System network of cells, tissue, organs, and chemicals that fight off pathogens
- 9. pathogens in the body multiply and damage body cells
- 10. piece of genetic material surrounded by a protein coat
- 13. being protected against a particular disease
- 14. substances that kill cells or interfere with their functions
- 15. a preparation of dead or weakened pathogens that are introduced into the body