AIDS is characterised by a sharp reduction is
Helper $T-$ cells
Killer $T-$ Cells
Suppressor $T-$ Cells
$B-$ lymphocytes
If the IIIrd nerve is damaged, it will lead to
‘Haemophilia' disease is caused due to lack of
The drug useful to increase cardiovascular effects in human beings is
Which of the following has only one host
Which one of the following disease is sexually transmitted disease