What is a common feature of both active and passive immunity? | IGCSE Board

What is a common feature of both active and passive immunity?

What is a common feature of both active and passive immunity? 


A They are acquired by vaccination.

B They are always short-term.

C They involve the activity of memory cells.

D They involve antibodies.

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The answer is D.


Active immunity involves the person's immune system to produce its own antibodies to fight off viral or bacterial infections while passive immunity is acquired through vaccination or other means, which contains readily made antibodies .

  • Vaccines do not contain antibodies. They contain antigens, which are proteins on the surface of pathogens that uniquely identify them. - ImranRadzmi 10 months ago
  • It is the organism that produces the antibodies in response to detection of antigens - ImranRadzmi 10 months ago
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