In which state of India was the first case of $AIDS$ infection reported?

Which virus directly attacks macrophages?

Which enzyme is responsible for integrating the viral $DNA$ (formed after reverse transcription of viral $RNA$) into the host cell $DNA$?

Identify the location and function of the following: $HIV$ Antigen and Amniotic bag.

Approximately how many people have died worldwide due to $AIDS$ since its first report?

$AIDS$ is characterized by a sharp reduction in: