Time to achieve viral clearance state determined by two successive negative PCR results for two oropharyngeal swabs separated by 48 hours.;Time to clinical recovery defined as 3 days afebrile with improved cough and other clinical signs

Time to achieve viral clearance state determined by two successive negative PCR results for two oropharyngeal swabs separated by 48 hours.;Time to clinical recovery defined as 3 days afebrile with improved cough and other clinical signs