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For decades, head and neck cancers were associated with risky behaviors like smoking and drinking,— but now a new cause of the disease has been identified: the human papillomavirus (HPV). The Centers for Disease Control and Prevention (CDC) now reports that 72 percent of these cancer cases are HPV-related.

Young women who receive the HPV vaccine are not more likely to have sex or participate in unsafe sexual behaviors. That's according to a report released Monday by Cincinnati Children's Hospital Medical Center.

The study finds teen girls and young women's beliefs about the human papillomavirus vaccine  - whether accurate or inaccurate - aren't linked to subsequent sexual behaviors.