In India,the $HIV$ virus was first reported in:

Which of the following effects is observed in an individual infected with $HIV$?

In $AIDS$,the number of which type of $T$-lymphocytes decreases?

Statement $P$: $HIV$ contains a $DNA$ molecule as its genetic material.
Statement $Q$: $AIDS$ is a fatal deficiency disease caused by immune system impairment.

Which of the following symptoms are characteristic of an $AIDS$ patient?

What does the $HIV$ virus in a retrovirus contain as its genetic material?