Question

what is the principle of immunisation class ninth chapter 13​

Answer 1

This is the basis of principle of immunisation. We fool the immune system of human body into developing a memory for particular infection by putting something that mimics the microbes we want to vaccinate against,into the body...

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Answer 2

Answer:

Immunization. Generally the term immunization refers to a process in which the host's immune system mounts a more or less specific reaction to an external antigen providing protection against future infection and/or disease manifestation (i.e., the individual becomes “immune”).