Infectious Disease

4. tiny single-celled organisms, some of which can cause disease
5. any kind of agent that causes disease
7. a reaction to injury or infection that is characterized by pain, redness, and swelling
9. hookworms, tapeworms and lice are examples of these
14. a network of vessels that carry a clear fluid called lymph throughout the body
18. inflammation of the intestine caused by an amoeba

1. malaria and African sleeping sickness are examples of this
2. cells in the body whose primary job is to defend the body against disease
3. a bacterial infection of the digestive system usually spread by eating contaminated food
6. substance introduced into a body to produce immunity
8. tiny disease causing particles made up of genetic material and a protein coat
10. medicines used to kill or slow the growth of bacteria
11. a disease caused by an agent that has infected the body
12. athletes foot, jock itch and ringworm are examples of this
13. an inflammation of the membrane covering the brain and spinal cord
15. get their energy and nutrients by feeding off of other living things
16. viral disease whose symptoms include inflammation of the liver, jaundice, and fever
17. organisms that absorb and use the nutrients of living or dead organisms