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

Which individuals are at higher risk of getting $HIV$ infection?

Immune deficiency syndrome in humans could develop as a consequence of

Human immune deficiency virus $(HIV)$ is a retrovirus with centrally located two $ssRNA$ molecules. It is covered by an outer layer of $I$ protein and an inner layer made up of $II$ protein.

$AIDS$ causing factors are associated with

Assertion: $HIV$ infected persons are prone to opportunistic diseases.
Reason: Immune system weakens during $HIV$ infection.