Across
- 2. a drug that kills microbes that cause infection
- 3. a microbe that is harmful and can cause infection
- 4. protection against a certain disease
- 5. the process of becoming unclean
- 9. human or animal that carries microbe-is not infected
- 11. plant like organisms that live on other plants/animals
- 13. the absence of disease producing microbes
- 14. found in flees, lice, ticks that bite humans
- 16. grow in living cells-cause colds, herpes,AIDS, HBV
- 17. a bacterium protected by a hard shell
- 18. one celled animals-infect blood,brain,intestines
- 19. a preparation containing dead or weakened microbes
- 20. a carrier that transmits disease
Down
- 1. preventing the spread of infection
- 6. a small living thing seen only with microscope
- 7. microbes in their natural habitat
- 8. one celled organism-multiplies rapidly
- 10. a disease state resulting from microbe invasion
- 12. a liquid chemical that kills many pathogens
- 15. the absence of all microbes
- 16. any substance that transmits microbes
