Antibodymediated Immunity

Antibody-mediated immunity occurs when the immune system produces antibodies that neutralize, eliminate, or destroy an antigen (foreign protein). Antibodies are produced by B lymphocytes. The body must be exposed to sufficient amounts of an antigen before the immune system produces an antibody to combat the antigen. Patients can be given vaccinations that stimulate the immune system to generate antibodies before the microorganism actually invades the body. In this way, the antibodies already exist and can attack at the first sign of the microorganism.

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