Across
- 2. Virus isolated and purified by Wendell Stanley in 1946
- 5. Study of viruses
- 6. Method of exposing a person to a controlled amount of a disease-causing factor to develop an immunity
- 11. Virus that infects only certain bacteria
- 12. Complete virus unit
- 13. Portion of a virus made up of DNA or RNA
- 16. Separate from the tumor and travel by the circulatory or lymphatic system to different parts of the body
- 20. Ability to produce poisonous substances
- 21. Study of the causes of disease
- 22. Abnormal form of protein found in some cells and linked to disease
- 23. Toxin that diffuses from a microorganism into the surrounding tissue while the pathogen is alive
- 24. Bursting of the host cell
Down
- 1. Agent that invades the body and causes a disease
- 3. Ability of a pathogen to affect cells
- 4. Protein covering of a virus
- 7. Reaction of tissues to injury or infection with a result of increased blood flow, redness, pain, swelling
- 8. Protein substance produced to eliminate antigens that have entered the body
- 9. Use of chemical agents to treat a disease
- 10. Elevated body temperature
- 14. Special type of RNA virus containing the enzyme reverse transcriptase
- 15. Particle made up of a core and a capsid
- 17. Chemical produced by living organisms that naturally kills or inhibits the growth of other organisms
- 18. Membrane-like substance that surrounds the capsid
- 19. Single strand of RNA that lacks a capsid or envelope which can still replicate inside the host