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1. Describe the role of the macrophage in the immune response.
2. State the origin and purpose of lymphocytes.
3. Compare active natural immunity and passive artificial immunity, describing the causative mechanism and giving an example.
4. What is the purpose of a booster vaccination?
5. Describe the purpose of gamma globulins.
6. Where is IgA found in the body?
7. Describe how type III hypersensitivity develops.
8. Explain the process by which an attack of hay fever follows exposure to pollen.
9. Explain why anaphylaxis is considered life threatening.
10. Describe the pathophysiology of a type III hypersensitivity reaction.
11. Define an autoimmune disease, and explain how the causative mechanism differs from a normal defense.
12. Describe two factors that promote a successful organ transplant.
13. Differentiate between a diagnosis of being HIV+ and a diagnosis of having AIDS.
14. Why are opportunistic infections common with AIDS?
15. State three methods of transmitting HIV and three methods by which the virus is not transmitted.
16. Describe two common complications associated with AIDS.

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