A head to head trial against current poliovirus vaccines has found that the new bivalent oral vaccine against poliovirus, which targets both the remaining types of poliovirus concurrently, induces a stronger immune response than the traditional trivalent vaccine and a similar immune response to the latest monovalent (monovalent type 1 or monovalent type 3)  vaccines. Furthermore, it is easier to administer, allowing children to be immunised against the two remaining types of wild poliovirus in a single oral dose. These are the conclusions of an Article published Online First in The Lancet.

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