Epidemiology of genital human papillomavirus.

Genital human papillomavirus (HPV) infection is the most common sexually transmitted viral infection and the major risk factor for cervical neoplasia worldwide; however, little is still known about the epidemiology and natural history of the disease. Prospective cohort studies currently being conducted will increase our knowledge and understanding of these issues and provide critical information for the formulation of future primary and secondary prevention strategies.