inclusion criteria: * confirmed mild cases of covid-19 defined as: symptomatic patients with any of covid-19 symptoms (fever, cough, sore throat, malaise, headache, muscle pain, nausea, vomiting, diarrhea, loss of taste and smell), * in addition to absolute leucopoenia (\< 4000) / absolute lymphopenia (\< 1000), positive crp (c-reactive protein), high serum ferritin and/or positive pcr for sars-cov-2 in nasopharyngeal swab. * no dyspnea and no abnormalities on high resolution chest imaging (hrct). * patients should be at home (not admitted to hospital) with no supplemental oxygen treatment.

inclusion criteria: * confirmed mild cases of covid-19 defined as: symptomatic patients with any of covid-19 symptoms (fever, cough, sore throat, malaise, headache, muscle pain, nausea, vomiting, diarrhea, loss of taste and smell), * in addition to absolute leucopoenia (\< 4000) / absolute lymphopenia (\< 1000), positive crp (c-reactive protein), high serum ferritin and/or positive pcr for sars-cov-2 in nasopharyngeal swab. * no dyspnea and no abnormalities on high resolution chest imaging (hrct). * patients should be at home (not admitted to hospital) with no supplemental oxygen treatment.

inclusion criteria: - confirmed mild cases of covid-19 defined as: symptomatic patients with any of covid-19 symptoms (fever, cough, sore throat, malaise, headache, muscle pain, nausea, vomiting, diarrhea, loss of taste and smell), - in addition to absolute leucopoenia (< 4000) / absolute lymphopenia (< 1000), positive crp (c-reactive protein), high serum ferritin and/or positive pcr for sars-cov-2 in nasopharyngeal swab. - no dyspnea and no abnormalities on high resolution chest imaging (hrct). - patients should be at home (not admitted to hospital) with no supplemental oxygen treatment.

inclusion criteria: - confirmed mild cases of covid-19 defined as: symptomatic patients with any of covid-19 symptoms (fever, cough, sore throat, malaise, headache, muscle pain, nausea, vomiting, diarrhea, loss of taste and smell), - in addition to absolute leucopoenia (< 4000) / absolute lymphopenia (< 1000), positive crp (c-reactive protein), high serum ferritin and/or positive pcr for sars-cov-2 in nasopharyngeal swab. - no dyspnea and no abnormalities on high resolution chest imaging (hrct). - patients should be at home (not admitted to hospital) with no supplemental oxygen treatment.