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Differentiate the following and give examples of each:
(a) Innate and acquired immunity
(b) Active and passive immunity

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a) Innate and acquired immunity

 

Innate immunity Acquired immunity 
It is a non−pathogen specific type of defense mechanism. It is a pathogen specific type of defense mechanism. 
It is inherited from parents and protects the individual since birth. It is acquired after the birth of an individual
It operates by providing barriers against the entry of foreign infectious agents. It operates by producing primary and secondary responses, which are mediated by B−lymphocytes and Tlymphocytes. 
It does not have a specific memory. 

It is characterized by an immunological memory.

(b) Active and passive 

Active immuniPassive immunity
It is a type of acquired immunity in which the body produces its own antibodies against diseasecausing antigensIt is a type of acquired immunity in which readymade antibodies are transferred from one individual to another. 

It has a long lasting effect.

It does not have long lasting effect. 
It is slow. It takes time in producing antibodies and giving responses. 

It is fast. It provides immediate relief.

Injecting microbes through vaccination inside the body is an example of active immunity. Transfer of antibodies present in the mother’s milk to the infant is an example of passive immunity

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