- Rates of HPV infection among girls 14 to 19 years of age were 63% lower from 2009 to 2012 than before 2006
- Experts predict that HPV rates will also decrease among older women
- Vaccination rates have improved in recent years, but experts say they still have a long way to go
(CNN)The human papillomavirus vaccine was first recommended for adolescent girls in the United States in 2006. Since that time, the prevalence of the cancer-causing virus has been dropping among young women, according to a new study.