Inclusion Criteria:  COVID-19 positive patients will have a previous positive COVID-19 test and radiographic findings, and/or a positive SARS-CoV-2 antibody test and be in early recovery. First PET/CT visit needs to be within 8 weeks of COVID-19 diagnosis. Ability to understand and willingness to sign an informed consent form. Ability to adhere to the study visit schedule and other protocol requirements. All persons ≥18 years of age.  Exclusion Criteria:  Pregnant or lactating women. Any condition that would prohibit the understanding or rendering of informed consent. Unable to lie supine for 1-hour imaging with PET. Prisoners. Any comorbidity that, in the opinion of the investigator, could compromise protocol objectives.