Disease

1. a class of diseases that are easily passed from person to person
3. a class of diseases that cannot be passed from person to person
4. a disease affects the global population
8. the transmission of disease either directly or indirectly
10. ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins.
13. a chemical liquid that destroys bacteria
15. a very small particle that contains proteins and hereditary material
17. eukaryotic,non-photosynthetic organisms
18. a chemical substance that has a negative effect on the body by inhabiting normal body functions
19. an individual who is infected with a disease
20. a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

2. a type of prokaryotic unicellular microorganism
5. a solution that contains weakened virus particles
6. a substance used to kill or slow the growth of microbes
7. any organism that has a harmful relationship with a host organism
8. the protein coat that surroundes the DNA or RNA of a virus
9. a widespread occurrence of an infectious disease in a community at a particular time
11. a condition where an organism experiences impaired function
12. any factor other than a human who can spread disease
14. the body's response to a disease
16. soap that kills microbes