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प्रश्न
How does the human body respond when vaccine is introduced into it?
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उत्तर
In vaccination, a preparation of antigenic proteins of pathogen or inactivated / or weekened pathogen (vaccine) are introduced into the body. The antibodies produced in the body against these antigens would neutralise the pathogenic agents during actual infection. The vaccines also generate memory – B and T-cells that recognise the pathogen quickly on subsequent exposure and overwhelm the invaders with a massive production of antibodies.
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संबंधित प्रश्न
Name any two types of cells that act as ‘cellular barriers’ to provide innate immunity in humans.
State the functions of mast cells in allergy response.
Which cells stimulate B-cells to form antibodies?
Immunity acquired after an infection is ______immunity.
Passive immunity is ______.
Which cells are play a major role in non-specific defence against viral infections and tumors?
The epithelial barrier of the innate immune system is ____________.
______ is secreted by killer T - cells.
All are forms of vaccines, EXCEPT ______.
______ provides a physical barrier.
