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

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

aWithin 15 days of sexual contact with an infected person.

bWhen the infected retrovirus enters host cells.

cWhen HIV damages large number of helper T lymphocytes.

dWhen the viral DNA is produced by reverse transcriptase.

✓ Correct answer: c) When HIV damages large number of helper T lymphocytes.

ExplanationThere is always a time lag between the infection and the appearance of AIDS symptoms.This period may vary from a few months to many years.

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