Question

Discuss active immunity and passive immunity

Answer 1

Immunity is defined as the activity related to the identification of foreign proteins and the production of antibodies to fight against time proteins which is converted into a body so that it can protect organism from the disease.

Immunity is divided into innate or acquired. Innate immunity is for divided into active immunity and it further divided into naturally acquired active immunity artificially acquired active immunity. Acquired immunity is divided into passive immunity passive immunity is furthur divided into naturally aquired passive immunity and artificially acquired passive immunity.

ACTIVE IMMUNITY.

This immunity is the resistance which is developed by our body as a result of antigenic stimulus.

Naturally aquired active immunity is developed in the body due to natural infection. This type of immunity is developed from previous infection. Example is a person who recovered from attack of measles who developed natural active immunity.

Artificially acquired active immunity is developed in the body by artificial mechanism. This is obtained by injection aur vaccination for Gamma globulins for the induction of Indian state.

PASSIVE IMMUNITY.

Passive immunity is a resistance which is transferred to a recipient in a ready made form. For example placenta transfer antibodies to the foetus.

Naturally acquired passive immunity e is the transfer of antibodies from mother to foetus it usually lasts nearly for 6 months after birth and also the secretary antibodies which is present in the milk also provide local immunity for Gastro intestinal tract of the breastfeeding infants.

Artificial acquired passive immunity is achieved by the administration of antibodies this agents used for the purpose of higher immune Sera and pooled human Gamma globulins. But usually antibodies against an organism or its toxins is raised in animal by repeated administration of antigens which are suitable for us. And they are used to prevent infection in individuals who are likely to suffer from a disease in the near future.