Which of the following immune responses is responsible for rejection of kidney graft?
Auto-immune respones
Humoral immune response
Inflammatory Immune response
Cell-mediated immune response
What is the basic principle of vaccination ? How do vaccines prevent microbial infections ? Name the organism from which hepatitis $B$ Vaccine is produced.
Interferons are
Against which of the following does interferon act
‘First line of defence' is known as
Interferon is