inclusion criteria: - patient over 18 years of age, having read and signed the consent form for participation in the study after the reflection period (≤ 15 minutes) - patient screened for covid+ by rt-pcr on nasopharyngeal swab - patient with at least three of the following respiratory signs: - temperature >38° c - non-productive dry cough - presence of crackling rales on auscultation - respiratory discomfort felt by the patient - heart rate > 90/min - respiratory rate >20/min - o2 saturation ≤ 93% - patient whose clinical condition, in the opinion of the investigator, requires hospital monitoring. - patient who would have been monitored and treated outside of study participation, including prevention of thromboembolic risk with lmwh.

inclusion criteria: - patient over 18 years of age, having read and signed the consent form for participation in the study after the reflection period (≤ 15 minutes) - patient screened for covid+ by rt-pcr on nasopharyngeal swab - patient with at least three of the following respiratory signs: - temperature >38° c - non-productive dry cough - presence of crackling rales on auscultation - respiratory discomfort felt by the patient - heart rate > 90/min - respiratory rate >20/min - o2 saturation ≤ 93% - patient whose clinical condition, in the opinion of the investigator, requires hospital monitoring. - patient who would have been monitored and treated outside of study participation, including prevention of thromboembolic risk with lmwh.