1. Confirmed SARS-CoV-2 infection. <br/ >2. Hospitalized patient with COVID-19 of moderate stable or worsening severity not requiring ICU admission, and on the other hand not experiencing clinical improvement under ongoing standard care. <br/ >3. Age: 18 years old and above. <br/ >4. Subjects must be under observation or admitted to a controlled facility or hospital (home quarantine is not sufficient). <br/ >5. Ability to receive treatment by spray into the oral cavity

1. Confirmed SARS-CoV-2 infection. <br/ >2. Hospitalized patient with COVID-19 of moderate stable or worsening severity not requiring ICU admission, and on the other hand not experiencing clinical improvement under ongoing standard care. <br/ >3. Age: 18 years old and above. <br/ >4. Subjects must be under observation or admitted to a controlled facility or hospital (home quarantine is not sufficient). <br/ >5. Ability to receive treatment by spray into the oral cavity

1. Confirmed SARS-CoV-2 infection. <br/ >2. Hospitalized patient with COVID-19 of moderate stable or worsening severity not requiring ICU admission, and on the other hand not experiencing clinical improvement under ongoing standard care. <br/ >3. Age: 18 years old and above. <br/ >4. Subjects must be under observation or admitted to a controlled facility or hospital (home quarantine is not sufficient). <br/ >5. Ability to receive treatment by spray into the oral cavity

1. Confirmed SARS-CoV-2 infection. <br/ >2. Hospitalized patient with COVID-19 of moderate stable or worsening severity not requiring ICU admission, and on the other hand not experiencing clinical improvement under ongoing standard care. <br/ >3. Age: 18 years old and above. <br/ >4. Subjects must be under observation or admitted to a controlled facility or hospital (home quarantine is not sufficient). <br/ >5. Ability to receive treatment by spray into the oral cavity