Theimmunesystemisthebody'sdefensemechanismagainstinfections,diseases,andforeigninvaders.Itconsistsofacomplexnetworkofcells,tissues,andorgansthatworktogethertoidentifyandeliminateharmfulpathogenslikebacteria,viruses,andparasites.Theimmunesystemhastwomaincomponents:theinnateimmunesystem,whichprovidesimmediatebutgeneralprotection,andtheadaptiveimmunesystem,whichdevelopstargetedresponsestospecificthreatsandretainsmemoryforfasterfutureresponses.Keyplayersincludewhitebloodcells,antibodies,andthelymphaticsystem.Understandinghowtheimmunesystemfunctionshelpsindevelopingvaccines,treatingautoimmunedisorders,andimprovingoverallhealth.
