Types of vaccine part 3

Posted on 28 September 2021 by azaleaazelia

Mono and polyvalent vaccine

Vaccines may be monovalent or polyvalent. A monovalent vaccine contains a single strain of a single antigen (e.g. Measles vaccine), whereas a polyvalent vaccine contains two or more strains/serotypes of the same antigen (e.g. OPV).

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