write a short note on lmmunization.
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Immunization is the process of vaccination against a particular disease. The vaccines have the disease causing microbes in them itself but in a weak or dead condition , so that our immune system can remember them and create antibodies against them. It is done for precaution against the disease. First vaccine was made against small pox and cow pox.
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Immunization is a way of preventing a person from getting a disease. This is done by making the person's body come into contact with a bit of the disease so that the body learns how to fight it. The body's ability to fight off a disease is called its immune system. The material is known as an immunogen
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