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At which stage of HIV infection does one usually show symptoms of AIDS?

  • A.When the infecting retrovirus enters host cells
  • B.When hiv replicates rapidly in helper t-lymphocytes and damages large number of these
  • C.Within 15 days of sexual contact with an infected person
  • D.When viral dna is produced by reverse transcriptase

Answer: B

AIDS appears when HIV replicates rapidly in the helper T lymphocytes and destroys them.

The virus can lie latent for years while the CD4 count falls slowly. AIDS is diagnosed when the count drops below 200 per microlitre or an opportunistic infection appears - not on infection itself.

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