First data on efficacy of the treatment with azelastine nasal spray will be assessed by the decrease in median virus load of SARS-CoV-2 between the treatment groups via regular quantitative PCR measurements from nasopharyngeal swabs.

First data on efficacy of the treatment with azelastine nasal spray will be assessed by the decrease in median virus load of SARS-CoV-2 between the treatment groups via regular quantitative PCR measurements from nasopharyngeal swabs.