>18 yrs old PCR confirmation of COVID-19 Severe or critical diseases as: respiratory rate>30 breaths/second, oxygen saturation<94% on room air sea level, lung infiltration of >50%, partial pressure of oxygen/Fraction of inspired oxygen <300 mmHg and/or any individual with respiratory failure, septic shock, and/or multiple organ dysfunction

>18 yrs old PCR confirmation of COVID-19 Severe or critical diseases as: respiratory rate>30 breaths/second, oxygen saturation<94% on room air sea level, lung infiltration of >50%, partial pressure of oxygen/Fraction of inspired oxygen <300 mmHg and/or any individual with respiratory failure, septic shock, and/or multiple organ dysfunction