Question

At which stage of HIV infection does one usually show symptoms of AIDS? (AIPMT 2014)

• A. When HIV damages a large number of helper T - lymphocytes.
• B. When the viral DNA is produced by reverse transcriptase.
• C. When the infected retrovirus enters host cells.
• D. Within 15 days of sexual contact with an infected person.

Answer 1

The correct option is A When HIV damages a large number of helper T - lymphocytes.

AIDS is a disorder of the cell-mediated immune system of the body. Virus responsible for AIDS is HIV (Human Immunodeficiency Virus). There is a reduction in the number of helper T-cells which stimulate antibody production by B-cells. This results in the loss of natural defence against viral infection.