Infectious Disease

3. a type of white blood cell that makes infection-fighting proteins called antibodies
5. when a person is given antibodies to a disease rather than producing them through his or her own immune system
8. small germs that can infect you and make you sick
10. when exposure to a disease organism triggers the immune system to produce antibodies to that disease
15. Plays football
16. the spread of infection through various means
17. the habitat in which the agent normally lives, grows, and multiplies.
18. The invasion and growth of germs in the body
20. a type of white blood cell called lymphocytes.

1. the ability of the immune system to quickly and specifically recognize an antigen that the body has previously encountered
2. reduce risks of getting a disease by working with your body's natural defenses to build protection
4. subsystem of the immune system that is composed of specialized cells, organs, and processes that eliminate pathogens specifically.
6. the reaction of the cells and fluids of the body to the presence of a substance which is not recognized as a constituent of the body itself.
7. Someone or something that causes an effect
9. a widespread occurrence of an infectious disease over a whole country or the world at a particular time.
11. a living organism that carries and transmits a pathogen from an infected individual to a healthy one
12. the science and art of preventing disease, prolonging life and promoting health
13. the first response of the body's immune system to a harmful foreign substance.
14. an unexpected increase in the number of disease cases in a specific geographical area
19. tiny, single-celled living organisms