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At which stage of HIV infection does one usually show symptoms of AIDS?
- Option 1)
When the infecting retrovirus enters host cells
- Option 2)
When viral DNA is produced by reverse transcriptase
- Option 3)
When HIV replicates rapidly in helper T-lymphocytes and damages large number of these
- Option 4)
Within 15 day of sexual contact with an infected person
Answers (1)
As learnt in
Replication of retrovirus -
Virus attack T-lymphocytes
- wherein
During this period, the person suffers from bouts of fever, diarrhoea and weight loss. Due to decrease in the number of helper T lymphocytes, the person starts suffering from infections that could have been otherwise overcome such as those due to bacteria
especially Mycobacterium, viruses, fungi and even parasites like Toxoplasma. The patient becomes so immuno-deficient that he/she is unable to protect himself/herself against these infections.
Option 1)
When the infecting retrovirus enters host cells
This option is incorrect
Option 2)
When viral DNA is produced by reverse transcriptase
This option is incorrect
Option 3)
When HIV replicates rapidly in helper T-lymphocytes and damages large number of these
This option is correct
Option 4)
Within 15 day of sexual contact with an infected person
This option is incorrect
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