Inclusion Criteria:  Male or female 18 years of age or older Unvaccinated individuals, or individuals who have received only 1 dose of an mRNA vaccine Individuals who have received a positive SARS-CoV-2 result within 24-48 hours (lab-based PCR or antigen test) Willing and able to provide informed consent Ability to read, write, and comprehend English Have no functional limitation that would impede the use of the MouthLab device Willing to provide access to health information via electronic health records (EHR)  Exclusion Criteria:  Currently receiving hospice care Have a left ventricular assist device Left-sided hemiplegia or any other motor deficits that may restrict the use of the device. individuals with cognitive deficits that impede their ability to comprehend and give informed consent. Individuals who are enrolled in any other investigational research studies of SARS-CoV2 or COVID-19 Individuals who are treated with monoclonal antibody therapy prior to diagnosis Individuals who are admitted to a hospital or acute care facility at the time of diagnosis Individuals with pacemakers or implanted cardio-defibrillators (ICDs) History of hemoptysis, pneumothorax, thoracic or abdominal aneurysm, pulmonary embolism, or stroke History of unstable cardiovascular status, including recent myocardial infarction (MI within 30 days), unstable angina, or uncontrolled hypertension Color blindness Chest, abdominal or eye surgery within the preceding 14 days Any condition that in the judgment of the investigators would interfere with the subject's ability to provide informed consent, comply with study instructions, place the subject at increased risk, or which might confound interpretation of study results.