- moderate, severe and critical covid-19 - day 0 crp greater than 6mg/dl, alc < 1000 or evidence of infiltrates on x-ray chest - comorbidity with life expectancy less than 6 months - contraindications to hcq therapy

- moderate, severe and critical covid-19 - day 0 crp greater than 6mg/dl, alc < 1000 or evidence of infiltrates on x-ray chest - comorbidity with life expectancy less than 6 months - contraindications to hcq therapy