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Differences between Innate and Adaptive (Acquired ) Immunity

Innate immunity/inborn/genetic/heritable: Nonspecific host defenses that exist prior to exposure to an antigen and involve anatomic, physiologic, endocytic and phagocytic and inflammatory mechanisms. Read more>>

Adaptive immunity/acquired/specific: Host defenses that are mediated by B and T cells following exposure to antigen and that exhibit specificity, diversity, memory and self/non-self-recognition. Read more>>
Innate vs Adaptive (Acquired) Immunity
No
Innate Immunity
Acquired (Adaptive) Immunity
1
Present from birth itself
Develops during life time
2
The immunity remains throughout life.
Can be short lived or lifelong.
3
Contact or exposure with pathogen or its antigen is not essential.
Contact with pathogen or its antigen is essential.
4
Innate immunity is inheritable.
Acquired immunity cannot be passed to the next generation except for a brief period to neonates.
5
It protects the individuals from contraction of diseases of other organisms.
It protects the individuals from pathogens present on other members of the same species.


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