What is the cause of $AIDS$?

Which enzyme helps in the replication of viral $RNA$ genome into viral $DNA$ within macrophages?

$A$ doctor while operating on an $HIV$ positive patient accidentally cuts himself with a scalpel. In order to confirm whether he has contracted the virus,which of the following tests should be performed?

$HIV$ is responsible for $AIDS$. Which cells does it destroy first?

$AIDS$ is caused by

The World Health Organization has started a number of programmes to prevent the spreading of $HIV$ infection.
Few such steps include:
$I.$ Ensuring the use of disposable needles and syringes.
$II.$ Free distribution of condoms.
$III.$ Advocating safe sex.
$IV.$ Controlling drug abuse.
Which of the steps given above are correct?