Across
- 1. a person that can hold and/or transfer a sickness-
- 3. Non-specific immune defense mechanisms that we are born with. These mechanisms work to keep anything outside of us from coming in.
- 8. direct, indirect
- 9. Any of various infectious proteins that are abnormal forms of normal cellular proteins. Prions proliferate by inducing normal proteins to convert to the abnormal form that causes diseases, such as mad cow disease, Creutzfeldt-Jakob disease, and kuru.
- 12. where the disease enters the body from
- 14. A single-celled, prokaryotic microorganism.
- 15. Saprophytic and parasitic spore-producing eukaryotic organisms that lack chlorophyll, such as molds, rusts, mildews, smuts, mushrooms, and yeasts.
- 16. The establishment of a disease-causing microorganism within a host.
- 18. A substance used to stimulate an immune response with the goal of creating antibodies and providing immunity to specific infections.
- 19. people or things that hold a disease
Down
- 2. A disease-causing organism.
- 4. A large, eukaryotic, multicellular, parasitic worm, such as a tapeworm, liver fluke, ascarid, or leech.
- 5. where the disease leaves the body from
- 6. Any of a large group of nonliving, submicroscopic infective agents that typically comprise an RNA or DNA core of genetic material surrounded by a protein coat. Viruses are not cellular and require a host in which to replicate. They cause various important diseases in all forms of life.
- 7. Anything that stimulates an immune response.
- 10. Any eukaryotic protist of the phylum or subkingdom Protozoa.
- 11. A substance used to stimulate an immune response with the goal of creating antibodies and providing immunity to specific infections.
- 13. people, animals, the environment-things that hold the disease
- 15. helminths
- 17. prions, viruses, bacteria, protists,
