Gardisil 9: In the US, the Gardisil 9 is the newest version of the HPV vaccine marketed by MERCK .It covers 9 strains of the HPV associated with disease, 7 more that the bivalent 16/18 vaccine. The US FDA approval is for age 9-26. Whether this is available or not in England is not something I have access to.
Answered 10/25/2015
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