Across
- 3. The process by which diseases spread.
- 6. The recovery stage after an illness.
- 8. The attachment of pathogens to host cells.
- 9. A collective of microorganisms growing on a surface.
- 11. An object that can spread disease.
- 13. The degree of pathogenicity of a microorganism.
- 14. A protective layer around some bacteria.
- 15. The relationship between organisms living together.
- 17. An agent that causes disease.
- 18. The period with early symptoms before full illness.
- 19. The initial stage of infection before symptoms appear.
Down
- 1. A toxin released from the outer membrane of bacteria.
- 2. Infections acquired in a hospital setting.
- 3. Harmful chemicals produced by pathogens.
- 4. A toxin that kills white blood cells.
- 5. A site where pathogens are maintained.
- 7. The process by which cells engulf pathogens.
- 10. A disease transmitted from animals to humans.
- 12. Microorganisms colonizing the body without causing disease.
- 16. The study of disease patterns in populations.