Inclusion Criteria:  ≥ 18 years at the time of consent Must have a confirmed diagnosis of COVID-19 Must have been discharged from hospital due to COVID-19 infection in the last 35 days Must exhibit reliability and physiologic capability (e.g. sufficient hearing, vision etc.) to comply with all protocol procedures, in the investigator's opinion and must have educational level of minimum 8th grade or primary school;  6. Must be able to read, write, and speak in a local language to complete the informed consent process and participate in an interview; 7. Must be willing to provide written informed consent to participate in the study; and, 8. Must be able to participate in a one-time interview for approximately 90-120 minute via video conference (e.g., Microsoft Teams, WebEx) AND has access to the necessary equipment and internet access.  Exclusion Criteria:  Signed the consent form to participate in the Synairgen SG018 clinical trial, Cognitive impairment, significant mental illness, or other disability impairing ability to participate in and/or complete research interview based on study coordinator's or clinician's judgement; or, Ongoing substance abuse disorders that may impact participation in this study.