I wonder how many other cancers have viral triggers?, probably MANY maybe even most types of cancer have a viral origin (with environmental factors like smoking, alcohol, toxins playing a part in triggering), this is new, cutting edge medicine and a lot is going to change in the next couple of decades in the field of cancer prevention.
I am going to repost a link I posted a few pages up thread, brand new, and very good news about the fact that Gardasil does indeed appear to be working by preventing the spread of the most virulent HPV strains, even where only one of the 3 vaccinations was given (a % of people will get full protection after only 1 jab, 3 jabs are given to ensure full immunity to almost everyone).
www.wsfa.com/story/18979290/hpv-vaccine-reducing-infections-even-among-unvaccinated-study
And once again, PREVENTING people from getting the virus which (eventually) causes the cancer is so much better than screening to find the cancer/pre-cancer the treatments for even the mild forms of abnormality causes stress, pain, worry and may also impact on your chances of carrying a pregnancy to term. Yes screening is still needed but it's not an either/or - both vaccine and screening should be used........ and most of the other forms of cancer caused by these 4 types of HPV in both males and females do not HAVE a screening program anyway!
The "temporary" immunity the vaccine gives against these 4 strains is a bit of a red herring..... a booster will be introduced at some point, but as I said before, 8 or 10 years of good immunity followed by a declining immunity, even if no booster is ever given, will still have significant impact on infection rates. This is because, the younger you are when you are first infected with HPV, the stronger the chance of cancer developing at some point later, and the younger you are the more short relationships you are likely to have (and ditto your partners). With a strong vaccination program, there will also be fewer infected people spreading the infections around to people who have lowered immunity so they would be less likely to contract the viruses when immunity (if) wears off.