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If a person is infected with some deadly microbes to which quick immune response is required, we need to directly inject the preformed antibodies. This type of immunisation is known as:

If a person is infected with some deadly microbes to which quick immune response is required, we need to directly inject the preformed antibodies. This type of immunisation is known as: Correct Answer Passive immunisation

The correct answer is Passive immunization.

  • If a person is infected with some deadly microbes to which quick immune response is required, we need to directly inject the preformed antibodies. This type of immunization is known as Passive immunization.
  • Passive immunity: When ready-made antibodies are directly given to protect the body against foreign agents, it is called passive immunity.
  • Active immunity: When a host is exposed to antigens, which may be in the form of living or dead microbes or other proteins, antibodies are produced in the host body. This type of immunity is called active immunity.

 

Active vs passive immunity

  Active Immunity Passive Immunity
Antibodies Produced inside of the body Introduced from outside of the body
Results from
  • Direct infection
  • Vaccination
  • Breast milk
  • Injection
  • Mother to baby through the placenta
Takes effect Over time (typically several weeks) Immediately
Length of efficacy Long-term to lifelong Short-term
Produced by memory cells? Yes No

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