difference between active and passive immunity

Hi!

Active immunity Passive immunity
Natural active immunity: It is the kind of immunity which is obtained as a result of an infection. The body manufactures its own antibodies when exposed to an infectious agent. Because memory cells, produced on exposure to the first infection, are able to stimulate the production of massive quantities of antibody when exposed to the same antigen again.

In passive immunity antibody from one individual are passed into another individual. They give immediate protection, unlike active immunity which takes a few days or weeks to build up.

Natural passive immunity: Passive immunity can be gained naturally. For example, antibodies from a mother can cross the placenta and enter her fetus. In this way it provides protection for the baby until its own immune system is fully functional. Passive immunity may also be provided by colostrum, the first secretion of the mammary glands.

Artificial active immunity: This is achieved by injecting small amounts of antigens, called the vaccines, into the body of an individual. The process is called vaccination. Artificial passive immunity: Here antibodies which have been formed in one individual are extracted and then injected into the blood of another individual which may or may not be of the same species. They can be used for immediate protection if a person has been, or is likely to be exposed to a particular disease. Only antibodies of human origin are now used for humans. Antibodies against rabies and some snake venoms are also available.
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Active immunity is due to the immune response in individual by pathogen or vaccine...Passive immunity is conferred by transfer of immune products i.e.,antibodies, 4m an individual into a non-immune individual

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Active immunityPassive immunity
Natural active immunity: It is the kind of immunity which is obtained as a result of an infection. The body manufactures its own antibodies when exposed to an infectious agent. Because memory cells, produced on exposure to the first infection, are able to stimulate the production of massive quantities of antibody when exposed to the same antigen again.

In passive immunity antibody from one individual are passed into another individual. They give immediate protection, unlike active immunity which takes a few days or weeks to build up.

Natural passive immunity: Passive immunity can be gained naturally. For example, antibodies from a mother can cross the placenta and enter her fetus. In this way it provides protection for the baby until its own immune system is fully functional. Passive immunity may also be provided by colostrum, the first secretion of the mammary glands.

Artificial active immunity: This is achieved by injecting small amounts of antigens, called the vaccines, into the body of an individual. The process is called vaccination.Artificial passive immunity: Here antibodies which have been formed in one individual are extracted and then injected into the blood of another individual which may or may not be of the same species. They can be used for immediate protection if a person has been, or is likely to be exposed to a particular disease. Only antibodies of human origin are now used for humans. Antibodies against rabies and some snake venoms are also available.
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 Active immunity:

1 it is slow and takes time to give a full response

2 it is a result of an infection wherein the body when exposed to living or dead microes produces antibodies against it

Passive immunity

1 the response time is immediate or rapid

2 it occurs when antibodies are directly given to the body to protect it against the foreign agents

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thanks to all of you for helping me.
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here the answer....

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Active immunity Passive immunity
Natural active immunity: It is the kind of immunity which is obtained as a result of an infection. The body manufactures its own antibodies when exposed to an infectious agent. Because memory cells, produced on exposure to the first infection, are able to stimulate the production of massive quantities of antibody when exposed to the same antigen again.

In passive immunity antibody from one individual are passed into another individual. They give immediate protection, unlike active immunity which takes a few days or weeks to build up.

Natural passive immunity: Passive immunity can be gained naturally. For example, antibodies from a mother can cross the placenta and enter her fetus. In this way it provides protection for the baby until its own immune system is fully functional. Passive immunity may also be provided by colostrum, the first secretion of the mammary glands.

Artificial active immunity: This is achieved by injecting small amounts of antigens, called the vaccines, into the body of an individual. The process is called vaccination. Artificial passive immunity: Here antibodies which have been formed in one individual are extracted and then injected into the blood of another individual which may or may not be of the same species. They can be used for immediate protection if a person has been, or is likely to be exposed to a particular disease. Only antibodies of human origin are now used for humans. Antibodies against rabies and some snake venoms are also available.
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