Inclusion Criteria:  age 18-65 confirmed COVID-19 ( coronavirus disease 2019) infection hospitalization in the COVID-19 treatment unit  Exclusion Criteria:  pregnancy patient who is not possible to fill in the questionnaire during the stay or up to a week after discharge history of a significant cardiovascular event in the last 6 months (acute coronary syndrome, stroke, amputation, revascularization of peripheral vessels, pulmonary or peripheral embolism of any etiology), which did not end with the completion of the rehabilitation process symptomatic chronic respiratory disease not responding to therapy prior to hospitalization for COVID-19 (or no therapy) all-cause dyspnoea at rest in the last month preceding COVID-19 injury of the locomotor system in the last month before getting COVID-19 hospitalization in the last month before falling ill with COVID-19