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प्रश्न
What is the basic principle of vaccination? How do vaccines prevent microbial infections? Name the organism from which hepatitis B vaccine is produced.
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उत्तर
The principle of vaccination is based on the property of `memory' of the immune system. In vaccination, a preparation of antigenic proteins of pathogens or inactivated/live but weakened pathogens is introduced into the body. The antigens generate the primary immune response by producing antibodies. The vaccines also generate the memory B-cells and T-cells. When the vaccinated person is attacked by the same pathogens, the existing memory B-cells or T-cells recognise the antigen quickly and overwhelm the invaders with massive production of lymphocytes and antibodies. The Hepatitis B vaccine is produced from yeast.
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संबंधित प्रश्न
Write short (2-3 sentences) note on immunisation.
Write short (2-3 sentences) note on vaccination.
Mention the contributions of
Louis Pasteur.
Name three commonly used vaccines.
What are antibiotics?
Name any three vaccines and the diseases for which they provide immunity.
What is vaccination?
Expand the following.
DPT-
Expand the following.
WHO-
Pick out the odd one.
Define the following.
Vaccines
In the given structure of an antibody molecule, identify the label 'X'.
Antibodies of white polio drops that are administered into the body contain:
The disease that is eliminated totally by the vaccination process is ______.
The process of vaccination was introduced by ______.
Define the following:
Antibiotics
After vaccination, the body builds up ______.
Which one of the following conditions though harmful in itself, is also a potential saviour from a mosquito borne infectious disease?
Assertion: A person who has received a cut from a sharp object and is bleeding, needs to be given an anti-tetanus injection.
Reason: Anti-tetanus injection stimulates the production of antibodies for tetanus.
