A quarter of men and a fifth of women in the United States has the strand of human papillomavirus that causes cancer.
Data from the National Center for Health Statistics shows 45% of American men has some form of HPV.
For people under 25, there is a vaccine that can protect people from the strands of the virus that cause various cancers.
Dr. Barbara Pahud with Children's Mercy Hospital and the University of Missouri Kansas City School of Medicine discussed the importance of getting the vaccine.
For vaccine information, click here .