Immune system

3. the act of introducing a vaccine into the body to produce protection from a specific disease.
4. helps the body fight infection and other diseases
6. a type of immune cell that can surround and kill microorganisms, ingest foreign material, and remove dead cells
7. submicroscopic infectious agents that replicate only inside the living cells of an organism.
10. the reproduction of viruses using a host cell to manufacture more viruses; the viruses then burst out of the cell
11. a type of white blood cell that surrounds and kills microorganisms, removes dead cells, and stimulates the action of other immune system cells.
12. acquired from exposure to the disease organism through infection with the actual disease
14. A type of white blood cell that makes antibodies
17. a type of white blood cell
18. any substance that causes the body to make an immune response against that substance
20. biquitous, mostly free-living organisms often consisting of one biological cell.

1. medicines that fight infections caused by bacteria in humans and animals by either killing the bacteria or making it difficult for the bacteria to grow and multiply
2. one of two cycles of viral reproduction
5. a type of immune cell that is made in the bone marrow and is found in the blood and in lymph tissue
8. a protein made by plasma cells (a type of white blood cell) in response to an antigen
9. produce an immune response against non-self or foreign bodies leading to immunity and protection against diseases
13. an organ that is part of the lymphatic system, in which T lymphocytes grow and multiply
15. an organ that is part of the lymphatic system
16. protects your child's body from outside invaders
19. a bacterium, virus, or other microorganism that can cause infection and disease.