Calprotectin, a Biomarker of COVID-19 Severity (CALPRO)

Inclusion Criteria: Criteria for all groups: * Adults ≥ 18 years * Dated and signed inform consent \* * \* : written informed consent of relative (trusted person, close family) in case of emergency procedure, by default emergency inclusion notified in medical file and pursuance consent sought. * Affiliation with a social security scheme Criteria for control group: * Age-matched healthy donors Criteria for chronic myeloid malignancies: * A diagnosis of low or high-risk myelodysplastic syndromes according to the WHO 2016 classification * A diagnosis of dysplastic or proliferative chronic myelomonocytic leukemia according to WHO 2016 Criteria for COVID-19 patients: * Patients with a recent diagnosis (\<7 days since first symptoms) of moderate or severe COVID-19 Exclusion Criteria: * Pregnant women * Minor patient or major under protection * Patients with COVID-19 infection and active cancer or a history of cancer within the last 6 months * Patients with COVID-19 and severe comorbidities including cardiovascular or respiratory diseases, unbalanced diabetes, obesity (IMC \>29) * Patient on AME (state medical aid)