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2016-01-11T02:40:49+05:30

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An antigenic substance prepared from the causative agent of a disease or a synthetic substitute, used to provide immunity against one or several diseases.

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2016-01-11T06:47:06+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
It is an antigenic material which develops our immune system as such that it could adapt immunity to that pathogen which the vaccine is related to.It is made from that pathogen only.This the most effective way to protect diseases.
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please mark as brainliest answer.