+Vaccines are biological preparations that provide acquired [Immunity](/wiki/immunity) to a particular infectious [Disease](/wiki/disease). They gently introduce the body to a pathogen's signature, teaching its defenses to recognize and swiftly fight future threats. This tiny act offers vast protection.
+## See also
+- [Public Health](/wiki/public_health)
+- [Immunization](/wiki/immunization)
+- [Virus](/wiki/virus)
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