An estimated 42.5% of adults under age 60 had genital human papillomavirus (HPV) in 2013-2014, while 7.3% of adults under 70 had oral HPV, according to a new report by the Centers for Disease Control and Prevention. HPV is the most common sexually transmitted infection in the U.S. About 23% of genital HPVs and 4% of oral HPVs were at high risk for causing cancer. The data are from the National Health and Nutrition Examination Survey.