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Passive and active Immunity differences

active and passive immunity
Active and Passive Immunity

 Difference Between: Active and Passive immunity
          Active immunity
            Passive immunity
  1
Direct contact with pathogen or its antigen is required
No direct contact with antigen is required. Antibodies are directly injected from outside.
  2
A time period is required for immunity development
Immunity develops immediately.
  3
Antibodies are produced within the body in response to pathogen or antigen
Antibodies are injected into the body are obtained from outside.
  4
It lasts for a long period
It lasts for a few days.
  5
Immunologic memory may result in life long immunity
          Only for few days
  6
Not much side effects
At times body reacts to the introduced antisera. The condition is called serum sickness.
For more: Immunology NotesImmunology MCQs
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