HIV causes reduction in
$T-$ helper cells only
All $T-$cells
$B-$ cells only
Both $B$ and $T-$ cells
Jaundice is a disease of
Which are the drugs which are normally used as medicines to help patients cope up with mental illness like depression and insomnia and are often abused?
The viruses infect the host cells. By the induction of viruses the host cells produce the
A chemical substance produced by a microorganism for inhibiting the growth of another is
$A$ : Vaccine against $AIDS$ has not been made inspite of repeated attempts.
$R$ : $HIV$ has the ability to get mutated to form several subtypes.