COVID-19 Respiratory Distress and Antithrombotic Drugs in Subject's Habits

Inclusion Criteria: * Major Subject (≥18 years) * Subject hospitalised in HUS or GHRMSA for COVID-19 * The diagnosis COVID-19 confirmed by smear or evoked by CT scan or chest X-ray without a differential diagnosis retained in the medical record * Subjects who, after being informed, do not wish to have their data reused for the purposes of this research Exclusion Criteria: * Subject who expressed opposition to participating in the study * Subject under guardianship or trusteeship * Subject under safeguard of justice * Patient hospitalized in a geriatric service or in a ward not labeled COVID (surgery, oncology,...) or in a short-term hospitalization unit without transfer to another service. * Serious patient on admission to the emergency room and recused from resuscitation.