Immunology
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Natural immunity is a general and non specific resistance to infection possessed by all healthy individualy.
natural immunity is also called innate immunity ,
which if first line of defence in our body ,
when a pathogen encounter in our body innate immunity neutralises the pathogen.
parts of natural immunity are,
skin, ear wax, mucus,acid present in our stomach,hairs (head,nose,pubic hair), saliva etc