This study evaluates oral HPV infection and risk factors in people with head and neck cancer and their partners or spouses. The study focuses on oropharyngeal cancer patients and includes patients with HPV-associated and HPV-unassociated disease. A comparison group of people without cancer (controls) are also being enrolled. Couples are followed longitudinally and there is a repository of study samples. It is hoped that this research will help us understand risk factors for oral HPV infection, persistence and transmission as well as researching biomarkers for HPV-associated oral cancer and survival.