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  • Read the following statements and select the correct ones. (i) Vaccine is a preparation (or suspension) of a dead/attenuated pathogen of a disease which on inoculation(or injection) into

Read the following statements and select the correct ones.

(i) Vaccine is a preparation (or suspension) of a dead/attenuated pathogen of a disease which on inoculation(or injection) into a healthy person, provides temporary/permanent active/passive immunity by inducing antibodies formation.

(ii) Immunisation is the process by which the body produces antibodies against the vaccine preventable diseases through the administration of specific vaccines.

(iii) The principle of immunisation or vaccination is based on the property of 'memory' of the immune system.

(iv) If a person is infected with some deadly microbes to which quick immune response is required; in that case, we need to directly inject the preformed antibodies or antitoxins e.g., in case of tetanus.

Option: 1

(i) and (ii)


Option: 2

(iii) and (iv)


Option: 3

(i), (ii) and (iii)


Option: 4

(i), (ii), (iii) and (iv)


Answers (1)

best_answer

As we have learnt,

 

Vaccination -

In vaccination, a preparation of antigenic proteins of pathogen or inactivated/weakened pathogen (vaccine) are introduced into the body

-

 

 

 

Posted by

Divya Prakash Singh

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