Inclusion Criteria:  Age > 18 years, <65 years old Confirmed or supected COVID19 test Informed Consent as documented by signature  Exclusion Criteria:  Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant. Previous enrolment into the current study. Any comorbidity which could impact on the physical test (6-minutes walking test), e.g hip or knee osteoarthritis, polyneuropathy, symptomatic coronary heart disease.