Question

Discuss briefly the principle of immunization

Answer 1

Immunity is the ability of an organism to resist an attack of pathogen. Immunity is of two types – active immunity and passive information. The concise information on these types is as follows

Active immunity

· Resistance is developed due to a previous infection. Person’s immune system synthesizes antibodies.

· Two types – Natural and artificial

· Natural is conferred when a person suffers and survives from a disease and artificial is conferred by vaccination.

Passive immunity

· Resistance is provided by inculcating the individual with ready made antibodies.

· Two types – Natural and artificial

· Natural – Through mother blood to foetus

· Artificial – Through antiserum obtained from animals blood.

Koch's germ theory is the basis of principle of immunization.

All the best.