What is Autoimmune Disease?
By Dr Ananya Mandal, MD
Like all other animals in the animal kingdom, humans also possess an immune system. The main functions of the immune system are to defend the body from germs and other foreign invaders.
The immune system is composed of special cells and organs that deal with invaders and allergens. The cells create antibodies to fight off the infection or foreign intruders.
To defend the body the immunity must recognise what is self or what belongs to the body and what is non-self or foreign to the body.
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