Also...
http://www.ahrp.org/cms/content/view/631/103/
FACTS about HPV:
There are more than 100 different types of HPV and at least 15 of them are oncogenic (potentially cancerous).
The current vaccines target only 2 oncogenic strains: HPV-16 and HPV-18.
The relationship between infection at a young age and development of cancer 20 to 40 years later is not known.
HPV is the most prevalent sexually transmitted infection, with an estimated 79% infection rate over a lifetime.
The virus does not appear to be very harmful because almost all HPV infections are cleared by the immune system.
In a few women, infection persists and some women may develop precancerous cervical lesions and eventually cervical cancer.
It is currently impossible to predict in which women this will occur and why.
Likewise, it is impossible to predict exactly what effect vaccination of young girls and women will have on the incidence of cervical cancer 20 to 40 years from now.
The vaccine’s effectiveness is confirmed for only five years.
The true risk /benefit of the vaccine can be determined only through clinical trials and long-term follow-up.
Thanks. Great link and summary.