SOLIDARITY Finland Long-COVID (Remdesivir Long-term Follow-up Study of COVID Patients)

SOLIDARITY Finland Long-COVID trial assesses the effects of remdesivir + standard of care (SoC) vs. only SoC on long-COVID symptoms and quality of life (QoL) using questionnaires at one and two years post-discharge. Objectives i) Long-COVID symptoms * To investigate the effect of remdesivir (vs. SoC) on the occurrence of symptoms that have been associated with the long-COVID syndrome. The questionnaires will take place 1 and 2 years after the hospital admission. * The symptom questionnaire - that will be completed by patients at one and two years - measures basic patient information (age, height, weight, smoking status, major comorbidity, and working status) and a wide variety of potential long-COVID-symptoms and their bother (1. Fatigue; 2. Attention deficits; 3. Memory problems; 4. Sleeping difficulties; 5. Depressive mood; 6. Anxiety; 7. Dizziness; 8. Headache; 9. Tinnitus; 10. Paresthesias; 11. Changes in taste/smell perceptions; 12. Postexertional malaise; 13. Palpitations; 14. Chest discomfort; 15. Nausea; 16. Skin rash; 17. Joint aches; 18. Muscle pains; 19. Continuous cough; 20. Respiratory tract mucous discharges) in remdesivir and usual care arms ii) Quality of life * EQ-VAS: to compare patients' quality of life in remdesivir and usual care arms. * EQ-5D-5L questionnaire assesses the following domains: 1. Mobility; 2. Self-care; 3. Usual activities; 4. Pain and discomfort; 5. Anxiety and depression; 6. The VAS of subjective perception of overall health. Additionally (at 1 or 2 years; depending on future funding and ethical approval decisions; currently the study has ethical approval for long-COVID and quality of life assessments only): * The Finnish healthcare registries (Statistics Finland Mortality Database and the HILMO Care Register for Health Care) will be used to estimate long-term mortality and incidence of major comorbidity in remdesivir and usual care arms * Lung function will be assessed using spirometry and diffusing capacity, as well as t