If one person has chicken pox once, there is no change of suffering from it again.This happens because when the immune system first sees an infectious microbe, it responds against it and then remembers it specifically. So the next time that particular microbe, or its close relatives enter the body, the immune system responds with even greater vigour. This eliminates the infection even more quickly than the first time around. This is the basis of the principle of imunization.
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Consider the following four statements (A-D) and select the option which includes all the correct ones only? a) In immunisation, a preparation of antigenic protein is induced in the body. b) If a person is infected with deadly microbe we need to directly inject vaccine. c) Vaccine generate B & T memory cell. d) Snake anti venom is an example of active immunisation.
Read the following statements and select the correct option. Statement 1 : Active immunity is developed when a person's own cells produce antibodies in reponse to infection or vaccine. Statement 2 : Injection of snake antivenom against snake bite is an example of active immunisation.
(a) What are zwitter ions? (b) What is denaturation of proteins? (c) What is meant by inversion of sugar? (d) What is mutarotation?
What is ligament ? What is its function?
What are the immunisation programmes available at the nearest health centre in your locality? Which of these diseases are the major health problems in your area?
Principle of vaccination or immunisation is :-
Why vaccination is also called immunisation?
Select the correct statement with respect to diseases and immunisation
LAKHMIR SINGH & MANJIT KAUR-WHY DO WE FALL ILL?-LONG ANSWER QUESTION
