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प्रश्न
Name the following:
The vaccine that helps to produce immunity against polio.
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उत्तर
Oral polio vaccine (OPV)
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संबंधित प्रश्न
Highlight the role of thymus as a lymphoid organ.
Why is secondary immune response more intense than the primary immune response in humans?
Expand the following: SCID
Given below is a scheme of classifying immunity against human diseases. Fill up the types of immunity in the blanks 1-9.

Give one significant difference between primary lymphoid organs and secondary lymphoid organs. Give one example of each.
Mention one application of the following:
Colostrum
____________ is a foreign substance capable of stimulating an immune response.
Which type of T-cells are responsible for producing lymphokines and stimulation of B- cells?
On coming in contact with an antigen, a sensitized T-lymphocyte produces ____________.
Production of which of the following is stimulated by secretin hormone?
