The approved age range currently is from 9-26. It is recommended that girl receive it between the ages of 12-18, but older women can get it, too.
The vaccines provide protection against HPV, different strains of which can cause both genital warts and cervical (and other genital) cancers.
Gardasil is also approved for male for the prevention of genital warts. Gardasil has 4 strains of HPV, 2 of which are common cause of genital warts. The Cervarix is only for women because it has only 2 strains (same one as in Gardasil) that commonly seen in Cervical cancer.
It is thought the protection against HPV will be life long, but the vaccine has not been around long enough for studies to prove this.
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