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Hiv/Aids And Drugs Question Paper

Hiv/Aids And Drugs

Course:Bachelor Of Environmental Science

Institution: Kabarak University question papers

Exam Year:2010

INSTRUCTIONS:
1. Answer All Questions in Section A.
2. Answer Two Questions only in Section B
3. Use diagrams wherever applicable

Section A: (40 Marks)

1. a) Explain meaning of the following terms:
i) Discordant ii) Lentivirus iii) Viral tropism
iv) Long-term non-progressors (4 mks)
b) Distinguish between the following terms:
i) Co-infection and superinfection
ii) Candidiasis and Karposi’s sarcoma
iii) Combination therapy and second line therapy (6 mks)
2. a) Describe the structure of an HIV virus (4 mks)
b) State three ways in which HIV differ from living organisms. (3 mks)
c) State the groups of HIV-1 and give their geographical distribution. (3 mks)
3. a) Describe brief the set up of a VCT centre. (3 mks)
b) Explain the test used in a VCT centre to determine the HIV status of a person.
(3 mks)
c) Why should one know his/her HIV status (4 mks)
4. a) Explain the association between HIV and Tuberculosis (4 mks)
b) Explain how opportunistic infections can be prevented. (3 mks)
c) Discuss briefly the origin of HIV virus (3 mks)

Section B: (20 Marks)

5. Describe the life cycle of HIV virus and explain how it has been used in the
development of Zidovudine and Efavirenz drugs for management of HIV/AIDS.
(10 mks)

6. Describe in detail the first three stages of HIV infection. (10 mks)

7 Discuss the role of counseling during HIV testing. (10 mks)

Hiv/Aids And Drugs Question Paper

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