Question

Why is the secondary immune response more rapid then the primary immune response?

Answer 1

Differences between Primary and Secondary Immune Response. The primary immune response occurs when an antigen comes in contact to the immune system for the first time. During this time the immune system has to learn to recognize antigen and how to make antibody against it and eventually produce memory lymphocytes

Answer 2

Answer:

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It is because the secondary immune response takes place when our body encounters the same antigen second time. The B- cells and T- cells are already present against the antigen and more cells are rapidly activated. During the primary immune response, the body encounters the infective agent for the first time and thus action of body is slow.