CDC reports that HPV is the most common STI, partially due to the fact that there are more than 40 types of HPV that affect both males and females. Most people are asymptomatic and in 90% of cases, HPV naturally clears up within 2 years. Among those who show symptoms, common signs include genital wart and cervical cancer. Recently according to Infectous Disease News, CDC's Advisory Committe on Immunization Practices approved recommendation of HPV vaccine to 11-12 year old boys because the vaccine "was safe, efficacious and cost-effective enough to warrant routine usage in this population."
In 2009, CDC's recommendations were permissive, meaning that health care providers could give vaccines to boys, but not routinely. The change to routine administration has potential to reduce HPV prevalence more than before.
My feelings - Why did it take so long for CDC to make recommendations routine! I's interesting that the vaccine was thought to be safe and effective for girls years before it was approved for boys, even though the safety and efficacy should not change. This is really optimistic for reducing HPV though!