inclusion criteria: - patients included in the corimuno-19 cohort - onset of covid19 functional signs <8 days (plasma transfusion may occur up to day 10 of onset) - mild severity as described in the who scale

inclusion criteria: - patients included in the corimuno-19 cohort - onset of covid19 functional signs <8 days (plasma transfusion may occur up to day 10 of onset) - mild severity as described in the who scale