Question

At which stage of HIV infection does the patient shows symptoms of AIDS

• A. HIV replicates repidly in helper T-lymphocytes and damages a large number of them
• B. within 15 days o sexual contact with an infected person
• C. When an infecting retrovirus enters host cells
• D. When viral DNA is produced by reverse transcriptase

Answer 1

Answer: (A)

HIV replicates repidly in helper T-lymphocytes and damages a large number of them

• AIDS (acquired immunodeficiency syndrome) is caused by the HIV virus
• T-helper cells play an important role in adaptive immunity. They not only help activate B cells to secrete antibodies and macrophages to destroy ingested microbes, but they also help activate cytotoxic T cells to kill infected target cells.
• HIV replicates rapidly in helper T-lymphocytes(CD 4) and damages a large number of them. They're responsible for keeping you healthy from common diseases and infections. As HIV gradually weakens your natural defences, signs and symptoms will occur.
• So, the correct answer is 'HIV replicates rapidly in helper T-lymphocytes and damages a large number of them'.