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