The researchers think that a blood test (NavDx®) may be able to identify cancer early by looking for circulating DNA from Human Papillomavirus/HPV. Circulating DNA are small pieces of genes that are released into the bloodstream. The purpose of this study is to find out whether using this blood test to test for HPV DNA will help detect HPV-related Oropharyngeal Cancer/OPC.

Inclusion Criteria:

• Ages 45 and older
• Self-reported history of four or more lifetime sexual partners
• Self-reported history of one or more lifetime oral sexual partner
• No previous history of diagnosed HPV-related head and neck cancer

Exclusion Criteria:

• History of diagnosed HPV-related OPC
• Less than three sexual partners in lifetime
• No history of oral sex performed
• Younger than age 45

Potential research participants will be identified by a member of the patient's treatment team, the protocol investigator, or research team at Memorial Sloan-Kettering Cancer Center (MSKCC). If the investigator is a member of the treatment team, s/he will screen their participant's medical records for suitable research study participants and discuss the study and their potential for enrolling in the research study. Potential participants contacted by their treating physician will be referred to the investigator/research staff of the study

Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.