Which of the following organizations is working to create awareness about $AIDS$ among people?

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

Identify the correct sequence for the mechanism of $HIV$ infection:
$1.$ Viral $RNA$ replicates to form viral $DNA$ with the help of reverse transcriptase.
$2.$ The progeny viruses released in the blood attack other $T_H$ cells and destroy them.
$3.$ Viral $DNA$ gets incorporated into the host cell's $DNA$ and produces virus particles.
$4.$ Virus enters into macrophages.

The first case of $AIDS$ was reported in the year .........

Which of the following diseases is transmitted through sexual intercourse?

Which virus undergoes rapid mutation?