communicable diseases

5. the body's response to injuries or disease, resulting in conditions of swelling, pain, heat, or redness
7. simple one-celled organisms.
13. the preparation of dead or weakened pathogens that are introduced into the body causing an immune response
15. a special white blood cell in the blood and lymphatic system
16. specific proteins that attach to antigens keeping them from harming the body
18. organisms that are more complex than bacteria but cannot make their own food
19. an organism such as an insect that transmits pathogens
20. smallest and simplest pathogens

1. able to spread to others by direct or indirect contact
2. any condition that interferes with the proper function of the body and mind
3. organisms that are so small that they can only be seen through a microscope
4. a serious inflammation of the lungs
6. the ability to resist the pathogens that cause a particular disease
8. a highly communicable viral disease characterized by fever, chills, fatigue, headache, muscle aches, and respiratory systems
9. bacterial disease that usually affects the lungs
10. one-celled organisms that are more complex than bacteria
11. the result of pathogens or germs invading the body, multiplying, and harming some of your bodies cells
12. viral disease characterized by an inflammation of the liver and yellowing of the skin and the whites of the eyes
14. substances that send the immune system into action
17. throat a soar throat caused by streptococcal bacteria