Assertion : Interferons are a type of'antibodies produced by body cells infected by bacteria.

Reason : Interferons stimulate inflammation at the site of injury.

Lymphocytes are seen in large numbers at sites of inflammation because

$A$ – The vaccines generate memory – $B$ and $T$ – cells. $R$ – In vaccination activated pathogens are introduced into the body.

Which of the following immune responses is responsible for rejection of kidney graft?

Which of the following is a pentameric immunoglobulin and is produced first in a primary response to an antigen?