inclusion criteria: confirmed sars-cov-2 infection (according to nationally authorized laboratory criteria) hospitalized patient with covid-19 of moderate stable or worsening severity not requiring icu admission. age: 18 years old and above. subjects must be under observation or admitted to a controlled facility or hospital (home quarantine is not sufficient). ability to receive treatment by spray into the oral cavity

inclusion criteria: confirmed sars-cov-2 infection (according to nationally authorized laboratory criteria) hospitalized patient with covid-19 of moderate stable or worsening severity not requiring icu admission. age: 18 years old and above. subjects must be under observation or admitted to a controlled facility or hospital (home quarantine is not sufficient). ability to receive treatment by spray into the oral cavity

inclusion criteria: 1. confirmed sars-cov-2 infection (according to nationally authorized laboratory criteria) 2. hospitalized patient with covid-19 of moderate stable or worsening severity not requiring icu admission. 3. age: 18 years old and above. 4. subjects must be under observation or admitted to a controlled facility or hospital (home quarantine is not sufficient). 5. ability to receive treatment by spray into the oral cavity

inclusion criteria: 1. confirmed sars-cov-2 infection (according to nationally authorized laboratory criteria) 2. hospitalized patient with covid-19 of moderate stable or worsening severity not requiring icu admission. 3. age: 18 years old and above. 4. subjects must be under observation or admitted to a controlled facility or hospital (home quarantine is not sufficient). 5. ability to receive treatment by spray into the oral cavity