Both genders Age ranging from18 to 80 Y.O. who are admitted in hospital showing at least one of these criteria: Fever (Oral temperature ≥ 38 ℃) , Respiratory rate >24/min , O2Sat<93% in room air or the Pa02/Fi02 ratio ≤300mgHg Laboratory (RT-PCR) confirming the infection with 2019-Covid Virus Lung involvement in CT-Scan less than 50 % ( in compliance with the involvement of moderate COVID19 ) 5 ≤days since onset of the COVID19 symptoms ≤10

Both genders Age ranging from18 to 80 Y.O. who are admitted in hospital showing at least one of these criteria: Fever (Oral temperature ≥ 38 ℃) , Respiratory rate >24/min , O2Sat<93% in room air or the Pa02/Fi02 ratio ≤300mgHg Laboratory (RT-PCR) confirming the infection with 2019-Covid Virus Lung involvement in CT-Scan less than 50 % ( in compliance with the involvement of moderate COVID19 ) 5 ≤days since onset of the COVID19 symptoms ≤10