HIV causes reduction in
$T-$ helper cells only
All $T-$cells
$B-$ cells only
Both $B$ and $T-$ cells
The term”antibiotic” was coined by
Thalidomide is a non-barbiturate sedative drug which was to be given to pregnant women. Its use was withdrawn in $1961$ because it resulted in phocomelia. This condition illustrates
‘Polio' is caused by
Polio immunizing vaccine was developed by
‘Hydrophobia' (Rabies) is a disease caused by