Natural History of HPV Infection in Men: The HIM Study

The study protocol will include a pre-enrollment run-in visit, a baseline visit (enrollment), and 8 additional visits after enrollment scheduled 6 months apart. Intervals of every 6 months were chosen to insure that both acquisition and loss of infections may be assessed, as studies in women indicate that median duration of oncogenic infections ranges between 7-9 months. Informed consent will occur during the run-in visit. The run-in and follow-up visits will include questionnaire administration, visual inspection of the skin and external genitalia, and the collection of urine, blood, oral cells, and penile skin samples If anogenital lesions are present at any of the clinic visits, they will be sampled as well.

Inclusion criteria

• Men between 18 and 70 years of age, living in Southern Florida, US; Sao Paulo, Brazil; or state of Morelos, Mexico.
• Participant has never been told that they have penile or anal cancer or genital warts.
• Willing to attend scheduled visits every 6 months in the next 4 years.

Exclusion criteria

• Prospective participants with symptoms of any STD (excluding HPV) during screening will not be eligible to participate in the study until the STD (Sexually Transmitted Disease) infection is gone.