Inclusion Criteria:  Clinically suspected or laboratory confirmed COVID-19 infection by real-time PCR Admission to an intensive care unit for COVID-19 and discharge  Exclusion Criteria:  Pregnancy Participants unable to complete long-term follow-up due to logistical problems Participant paralyzed before being admitted to hospital for COVID-19 History of pulmonary resection Previous pulmonary transplant Documented advanced neurologic order for which the patient is unable to carry out 6 minute walk test Documented psychiatric disease for which the patient is unable to carry out interview