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प्रश्न
Write a note on ‘artificial acquired active immunity’.
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उत्तर
Artificially acquired active immunity:
It is acquired artificially by vaccination.
Vaccines contain dead or live but attenuated pathogens or toxoids.
These consist of microbial components or toxins secreted by the pathogens.
The vaccine is introduced into the body to stimulate the production of antibodies by the immune system.
Examples: Polio vaccine, BCG vaccine
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संबंधित प्रश्न
Name any two types of cells that act as ‘cellular barriers’ to provide innate immunity in humans.
Highlight the role of thymus as a lymphoid organ.
Describe the antigen-antibody complex
An antiviral protein released from infected and dying cells is ______.
Name the following:
The vaccine that helps to produce immunity against polio.
Which cells stimulate B-cells to form antibodies?
Which one of the following is the most accurate definition of the term ‘health’?
Define ‘Health’, as given by WHO.
Enlist any two features of Acquired immunity.
On coming in contact with an antigen, a sensitized T-lymphocyte produces ____________.
