write notes on immunisation ?
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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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Immunization is the process by which a person is made immune or resistant to an infectious disease, usually by administering them with a vaccine. Vaccines are used to stimulate the body's own immune system to protect the person against subsequent infection/disease...
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