Immunity
A state of being immune.
Immunity is a state of resistance of an organism to invading pathogen and their harmful effects.
A natural or acquired resistance to specific disease is known as immunity.
Cell and molecules responsible for immunity constitute the immune system.
Types of Immunity
1. Innate (natural) immunity or native immunity or inherited immunity.
Immunity by birth.
2. Acquired immunity (adaptive)
Immunity acquired after birth.
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