- The patient has an already known psychiatric or somatic condition that can explain his/her fatigue. We will also screen for the presence of Post-Traumatic Stress Disorder ([PTSD], (PCL-5) which prevalence may be high in this patient group because of traumatic experiences during the acute phase of COVID-19. We will also screen for the presence of depressive disorder (Mini- International Neuropsychiatric Interview), - The patient currently participates in a multi-disciplinary rehabilitation programme aimed to ameliorate the consequences of COVID-19,- The patient has objectified hypoxemia in rest for which oxygen therapy at home is indicated.

- The patient has an already known psychiatric or somatic condition that can explain his/her fatigue. We will also screen for the presence of Post-Traumatic Stress Disorder ([PTSD], (PCL-5) which prevalence may be high in this patient group because of traumatic experiences during the acute phase of COVID-19. We will also screen for the presence of depressive disorder (Mini- International Neuropsychiatric Interview), - The patient currently participates in a multi-disciplinary rehabilitation programme aimed to ameliorate the consequences of COVID-19,- The patient has objectified hypoxemia in rest for which oxygen therapy at home is indicated.