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प्रश्न
Answer the following question:
The principle of vaccination is based on the property of the "memory" of the immune system. Taking one suitable example, justify the statement.
उत्तर
The principle of vaccination is based on the property of 'memory' of the immune system. In vaccination, a preparation of antigenic proteins of the pathogen or attenuated (inactivated/weakened) pathogen is introduced in the body. The antibodies produced in the body against these pathogens will neutralize the pathogenic agents during actual infection. The vaccine also generates memory B-cells and T-cells that recognize the pathogen quickly on subsequent exposure. For example, vaccination against polio prevents the actual pathogen from resulting in infection.
संबंधित प्रश्न
It is generally observed that the children who had suffered from chicken – pox in their childhood may not contract the same disease in their adulthood. Explain giving reasons the basics of such immunity in an individual. Name this kind of immunity.
A heavily bleeding and bruised road accident victim was brought to a nursing home. The doctor immediately gave him an injection to protect him against a deadly disease.
(a) Write what did the doctor inject into the patient’s body.
(b) How do you think this injection would protect the patient against the disease?
(c) Name the disease against which this injection was given and the kind of immunity it provides.
Highlight the role of thymus as a lymphoid organ.
Differentiate the following and give examples of Active and passive immunity
Name the cells that are released from the above-mentioned gland. Mention how they help in immunity.
Name the following:
The category of immunity required in the treatment of snake-bite.
Both B-cells and T-cells are derived from __________.
Enlist the four types of T- lymphocytes, responsible for immune response of our body.
All are forms of vaccines, EXCEPT ______.
What is the site of maturation of B-lymphocytes?
