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JIPMER2018ZoologyHuman Health and Diseases

Which of the following is involved in passive immunity?

Options

  1. AIg A
  2. BIgE
  3. ClgM
  4. DIgD

Correct answer

A. Ig A

Step-by-step solution

IgA antibody is involved in passive immunity. This type of immunity is produced by a donor other than the infected person or an animal. It is short lived. Human colostrum (Mother's first milk) is rich in IgA antibodies. It provides natural passive immunity to the infant till the age of three months.

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