You are here Home Glossary of technical terms Glossary of technical terms immunity Listen Print Share Twitter Facebook Email The ability of the body to fight off an infection. Immunity can result from natural infections or from vaccination. Page history Last updated 11 June 2018 Last reviewed 11 June 2018 Is there anything wrong with this page? Help us improve the Australian Immunisation Handbook What you were doing? (required) What went wrong? (required) Leave this field blank