If somebody does nothing it could require a couple of years to establish immunity to HPV. If a person takes the writer's advice, it requires just a few months to generate immunity to HPV. The longer someone is infected with HPV, the longer it might create cervical damage. So it is ideal to establish resistance and do away with HPV as soon as reasonable.
http://elliottzext796.bravesites.com/entries/general/the-next-big-thing-in-hpv-16-cure