Part I: Patients >18 years of age diagnosed as COVID-19 positive by reverse transcriptase Polymerase Chain Reaction (RT PCR) and are having mild COVID-19 with cough or dyspnea or both with room air saturation is within normal limits ( > 94%). <br/ >Part II: Patients >18 years of age diagnosed as COVID-19 positive by reverse transcriptase Polymerase Chain Reaction (RT PCR) and PaO2/FiO2 of 200-350 as assessed by arterial blood gas (ABG) analysis. <br/ >

Part I: Patients >18 years of age diagnosed as COVID-19 positive by reverse transcriptase Polymerase Chain Reaction (RT PCR) and are having mild COVID-19 with cough or dyspnea or both with room air saturation is within normal limits ( > 94%). <br/ >Part II: Patients >18 years of age diagnosed as COVID-19 positive by reverse transcriptase Polymerase Chain Reaction (RT PCR) and PaO2/FiO2 of 200-350 as assessed by arterial blood gas (ABG) analysis. <br/ >

Part I: Patients >18 years of age diagnosed as COVID-19 positive by reverse transcriptase Polymerase Chain Reaction (RT PCR) and are having mild COVID-19 with cough or dyspnea or both with room air saturation is within normal limits ( > 94%). <br/ >Part II: Patients >18 years of age diagnosed as COVID-19 positive by reverse transcriptase Polymerase Chain Reaction (RT PCR) and PaO2/FiO2 of 200-350 as assessed by arterial blood gas (ABG) analysis. <br/ >

Part I: Patients >18 years of age diagnosed as COVID-19 positive by reverse transcriptase Polymerase Chain Reaction (RT PCR) and are having mild COVID-19 with cough or dyspnea or both with room air saturation is within normal limits ( > 94%). <br/ >Part II: Patients >18 years of age diagnosed as COVID-19 positive by reverse transcriptase Polymerase Chain Reaction (RT PCR) and PaO2/FiO2 of 200-350 as assessed by arterial blood gas (ABG) analysis. <br/ >