This is a prospective, multi-center study. Subjects with OSCC or OPSCC will be enrolled from four primary and secondary care centers in the U.S. Study samples will be collected by the clinicians at the study sites using Viome saliva sample collection kits. Patients will continue with their current health plan and confirm diagnosis following the standard of care of surgical biopsy with histology if needed. If a biopsy is performed, the result of the biopsy will be compared with the result of the Viome kit. If no biopsy is performed, the Viome test result will be compared with the physician's assessment based on clinical judgment. Patients with a positive result from histology will not receive the results of the Viome kit, and it will not play any part in the clinical management of the patients.
