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HPV is epidemic, which is odd since it is largely preventable

There are two vaccines that guard against human papilloma­virus, and they are in rare company among medical inventions — the vaccines prevent cancer. Only the hepatitis B vaccine can make the same claim. Cancer-causing HPV can trigger abnormal cell growth on the cervix, and cervical cancer still kills up to 4,000 U.S. women each year. The virus is also implicated in cancers occurring in the anus and the throat. All told, according to a 2011 study, 29 percent of sexually active U.S. girls and women carry a potentially cancer-causing HPV infection.

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