‐ The mortalityb ‐ No harmful effects after 5 years‐ The procalcitonin leveld ‐ The serum creatinine levelb ‐ Level of prothrombin time (PT)e ‐ Creatine kinasee ‐ Upregulation of hemoglobin‐ Downregulation of PTR adiologic changes: ‐ Linear fibrosis, air bronchogram, bronchiectasia, isolated areas of pleural thickening, ground ‐glass opacities, and hydrothorax. MSC‐based therapy suggested as alternative for COVID‐19 treatment. Here, F2 is linked to COVID-19.