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1. |
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» C. Within 15 days of sexual contact with an infected person | |