MCQOPTIONS
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| 1. |
At which stage of HIV infection does one usually show symptoms of AIDS? |
| A. | Within 15 days of sexual contact with an infected person. |
| B. | When the infecting retrovirus enters host cells. |
| C. | When viral DNA is produced by reverse transcriptase. |
| D. | When HIV replicates rapidly in helper T-lymphocytes and damages large number of these cells. |
| Answer» E. | |