Question

Differences between active and passive immunity by

Answer 1

Answer: Passive immunity is provided when a person is given antibodies to a disease rather than producing them through his or her own immune system. ... This is the major advantage to passive immunity; protection is immediate, whereas active immunity takes time (usually several weeks) to develop.

Answer 2

Answer:

Active immunity

1. It is a type of acquired immunity in which the body produces its own antibodies against disease causing antigens.  
2. It is a type of acquired immunity in which readymade antibodies are transferred from one individual to another.    
3. It has a long lasting effect.
4. It is slow. It takes time in producing antibodies and giving responses.  
5. Injecting microbes through vaccination inside the body is an example of active immunity.  

Passive immunity  

1. It is a type of acquired immunity in which readymade antibodies are transferred from one individual to another.    
2. It does not have long lasting effect.
3. It is fast. It provides immediate relief.
4. Transfer of antibodies present in the mother’s milk to the infant is an example of passive immunity.