Two ways by which innate immunity can be accomplished

Dear student
Innate immunity is present since birth and the immunogens are present in the body congenially
whereas acquired immunity is capable of recognising and selectively eliminating specific foreign
antigens. Acquired immunity does not come into play until there is an antigenic challenge to
organism.
Two ways innate immunity can be accomplished are:
Cytokine barriers: Virus-infected cells secrete proteins called interferons which protect non-inflected
cells from further viral infection.
Physiological barriers: Acid in the stomach, saliva in the mouth, tears from eyes–all prevent
microbial growth.

Regards

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