inclusion criteria: - hospitalized diabetic adults with laboratory-confirmed sars-cov-2 infection as determined by polymerase chain reaction (pcr) in any respiratory specimen within 10 days prior to randomization or *hospitalized diabetic adults with typical features of covid-19 for 10 days prior to randomization, not yet tested for sars-cov-2 infection by pcr in any respiratory specimen. - rt-pcr for sars-cov-2 will be performed within 48 hours of enrollment and excluded from the study if found to be negative. - 8-point ordinal scale "category 5" patients, but o2 requirement not more than 10l / min. - the subject provides informed consent before initiating any study procedures and understands and agrees to comply with planned study procedures

inclusion criteria: - hospitalized diabetic adults with laboratory-confirmed sars-cov-2 infection as determined by polymerase chain reaction (pcr) in any respiratory specimen within 10 days prior to randomization or *hospitalized diabetic adults with typical features of covid-19 for 10 days prior to randomization, not yet tested for sars-cov-2 infection by pcr in any respiratory specimen. - rt-pcr for sars-cov-2 will be performed within 48 hours of enrollment and excluded from the study if found to be negative. - 8-point ordinal scale "category 5" patients, but o2 requirement not more than 10l / min. - the subject provides informed consent before initiating any study procedures and understands and agrees to comply with planned study procedures