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Envs 122: Hiv/Aids And Drugs Question Paper

Envs 122: Hiv/Aids And Drugs

Course:Bachelor Of Education Science

Institution: Kabarak University question papers

Exam Year:2011

INSTRUCTIONS:
i) Answer All Questions in Section A.
ii) Answer Two Questions Only in Section B
iii) Use diagrams wherever applicable.

SECTION A (40 MARKS)

1. Distinguish between the following terms
a) Coinfection and superinfection b) Candidiasis and Karposis sarcoma
c) Viral tropism and Seroconversion (6 marks)

2. a) Explain and illustrate the structure of HIV particle. (4 marks)
b) Explain the origin of HIV. (4 marks)
c) Which HIV-1 subtypes are prevalent in:
i) Kenya ii) South-East Asia iii) North America / Europe (3 marks)

3. a) Briefly discuss HAART treatment, giving the mode of action of ARVs involved.
(4 marks)
b) Give reasons why HAART has not achieved optimum results. (4 marks)
c) Write short notes on the Lazarus syndrome (3 marks)

4. a) Explain combination prevention strategy against HIV infection. (5 marks)
b) State the advantages of HIV testing (4 marks)
c) State the importance of post-test counseling. (3 marks)

SECTION B (20 MARKS)

5. Discuss the impact of HIV/AIDS in sub-Saharans African with reference to:
a) Households b) Education (10 marks)

6. a) Explain the life cycle of HIV particle. (8 marks)
b) Elaborate on HAART treatment, giving the mode of action of ARVs involved.
(2 marks)
7. a) Briefly discuss the clinical stages of HIV infection. (8 marks)
b) Explain briefly how opportunistic infections can be prevented. (2 marks)

Envs 122: Hiv/Aids And Drugs Question Paper

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