Fig. 3.

Progression of secondary outcomes: (A) Dyspnea, (B) Type of oxygen therapy, (C) Chest tightness, (D) Dry cough, (E) Sputum or wet cough, (F) Weakness, (G) Sore throat, (H) Myalgia, (I) Anorexia, and (J) Headache. For each group, the first column (blue) is day 0, the second column (orange) is day 3, and the third column (gray) is day 7. The cross sign and circle sign are representative for mean score and outlier points, respectively. Numbers are mean score in each time: severity score of symptoms is described as: 0=not affected; 1= minimally-affected; 2=affected; and 3=severely-affected. Severity score of oxygen therapy is described as: 0 = not needed; 1= nasal cannula; 2= simple face mask; 3= mask with reservoir; and 4= continuous positive airway pressure and non-invasive ventilation (CPAP/NIV) Mask.