Question

Why is secondary immune response more intense than the primary immune response in human​

Answer 1

Answer:

When the body undergoes the first or primary immune response, it produces B-lymphocytes that manufacture and deploy antibodies to attack the antigen. Some of these lymphocytes become memory cells. These have a much longer lifespan and continue to exist even after the immune response has stopped.

When a secondary response occurs, these memory cells already recognize the antigen and can therefore respond much more quickly.

Answer 2

Answer:

It is because immune response takes when our body encounters the same antigen. The B cells and T cells are already present against the antigen and more cells are rapidly activated.