Polio immunizing vaccine was developed by
E. Jenner
Dr. Salk
St. Hale
Landsteiner
$A$ : It is considered advantageous to give the polio vaccine orally.
$R$ : It prevents reinfection by causing intestinal immunity
The inability to distinguish between self cells and non-self cells may lead to
A person is injected with globulin against hepatitis. This is
Which is not a ’opiate narcotic'
In cancer, .................. uses strong magnetic fields and non-ionizing radiations to accurately detect pathological and physiological changes in the living tissue.