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Immunization Record
Immunization may occur naturally, as when a person is exposed unintentionally to a pathogen (any infectious agent), or it may be brought about artificially through a vaccine. In either case, immunization provides resistance, or immunity, to a particular pathogen by means of antibody proteins that are targeted to eliminate that pathogen from the body. These antibodies do not react to the entire pathogen but only to a specific part of it, which is called an antigen. An individual can acquire immunity for a specific pathogen passively or actively. In passive immunization a person receives antibodies or lymphocytes that have been produced by another individual's immune system; in active immunization the individual's own immune system is stimulated to produce antibodies and lymphocytes.
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