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Various types of antigenic agents in constitute vaccines

What are the various types of antigenic agents that can constitute vaccines?

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Vaccines may be constituted of dead agents of that particular disease, of inactivated agents of disease, or of inactivated toxins or of fragments of the infectious agent. Examples of a number of vaccines and their kind of antigenic agents are: inactivated tuberculosis bacilli, BCG; inactivated toxin and antitetanic vaccine; inactivated toxin, antidiphtheric; antipolio Salk, dead poliovirus; attenuated (inactivated) poliovirus, antipolio Sabin.

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