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The correct, specific lymphocyte which produces the correct antibodies to match the antigens of an invading pathogen are found. The lymphocyte produces memory cells which remain in the body for a long time (often a lifetime), providing active immunity.It is possible to provide immunity by providing only antibodies. For example, breastfeeding provides antibodies to a baby. These are only temporary and do not offer long-term immunity. This is known as passive immunity.