inclusion criteria: * patients aged 18-85 years (inclusive). * meet the diagnostic criteria for covid-19. * at least one high risk factor for progression to severe covid-19 * no more than 5 days from the onset of clinical symptoms * sign informed consent form.

inclusion criteria: * patients aged 18-85 years (inclusive). * meet the diagnostic criteria for covid-19. * at least one high risk factor for progression to severe covid-19 * no more than 5 days from the onset of clinical symptoms * sign informed consent form.

inclusion criteria: patients aged 18-85 years (inclusive). meet the diagnostic criteria for covid-19. at least one high risk factor for progression to severe covid-19 no more than 5 days from the onset of clinical symptoms sign informed consent form.

inclusion criteria: patients aged 18-85 years (inclusive). meet the diagnostic criteria for covid-19. at least one high risk factor for progression to severe covid-19 no more than 5 days from the onset of clinical symptoms sign informed consent form.