Vaccination provides protection to an individ | vedclass

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(D) Vaccination works on the principle of immunological memory. When a vaccine is introduced into the body, it contains weakened or inactivated pathog

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induces the production of antibodies.

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(D) Vaccination works on the principle of immunological memory. When a vaccine is introduced into the body, it contains weakened or inactivated pathogens or their antigens. The immune system recognizes these antigens as foreign and triggers an immune response. This response leads to the production of specific antibodies that neutralize the pathogen. Additionally, it creates memory $B$ and $T$ cells, which provide long-term immunity against future infections by the same pathogen.

Vaccination provides protection to an individual against a disease because it.........

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$A$ - The vaccines generate memory $B$ and $T$ cells. $R$ - In vaccination,activated pathogens are introduced into the body.

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