A) Within 16 days of sexual contact with an infected person
B) When the infected retrovirus enters host cells
C) When HIV damages large number of helper T-lymphocytes
D) When the viral DNA is produced by reverse transcriptase
Correct Answer: C
Solution :
[c] AIDS symptoms appear in the most advanced stage of HIV disease. Some people show HIV symptom shortly after incubation period but it usually takes more than 10 years. HIV attacks T-helper cells which regulate both hormonal and cellular immunity. This causes their depletion due to which patients immune system becomes very weak and susceptible to even minor infections.
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