+Immunity is the body's natural defense, a state of resistance to disease and infection. It involves intricate processes, from recognizing foreign [Pathogen](/wiki/pathogen) to building a robust [Defense System](/wiki/defense_system) that remembers past threats.
+## See also
+- [Immune System](/wiki/immune_system)
+- [Vaccine](/wiki/vaccine)
+- [Antigen](/wiki/antigen)
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