Change in subjective symptoms**Subjective symptoms (cough; shortness of breath; fatigue; headaches; anosmia; dysgeusia; and anorexia) are assessed by the Severity Score (4-point Likert scale; not affected; little affected; affected; and severely affected) or visual analog scale (VAS)

Change in subjective symptoms**Subjective symptoms (cough; shortness of breath; fatigue; headaches; anosmia; dysgeusia; and anorexia) are assessed by the Severity Score (4-point Likert scale; not affected; little affected; affected; and severely affected) or visual analog scale (VAS)