Across
- 2. The amount of vaccines used on people
- 6. Vaccination of a large sum of people to protect those who can't vaccinate
- 10. This attaches to the host and feeds on to it
- 11. A unique marker on a pathogen that triggers the body's immune response.
- 13. When a disease can spread from person to person.
- 14. The immune system has antibodies for a specific pathogen, making it ___ to it
- 16. A pathogen that can be unicellular or multicellular, and feeds off the host.
- 17. The extent of how life-threatening a disease is.
- 18. White blood cells that engulf/destroy pathogens
- 19. The amount of infected people
Down
- 1. Microbes and other microscopic agents that cause disease
- 3. An illness, caused by any factor
- 4. A unicellular organism that enters the body and multiplies
- 5. The body's system to protect itself
- 7. An organism that can only be seen with the microscope
- 8. A treatment that helps the body build immunity to an infectious disease.
- 9. A microscopic agent that is non-living, and multiplies itself.
- 12. When the disease is not caused by a pathogen
- 14. A disease that can be caused by a pathogen
- 15. They produce antibodies and carry them on their cell membrane
- 20. A special protein which binds to a specfic pathogen