SARS-COV 2 infection might be responsible for sever pneumonia. Obesity seems to be a risk factor for severe SARS-COV 2 pneumonia. Lipid metabolism alteration are described with both obesity and sepsis. The aim of the present study was to describe association between lipid metabolism, obesity, sepsis inflammation and clinical outcome in COVID-19 patient with severe pneumonia compared with severe pneumonia caused by other pathogenes.

Inclusion Criteria:

• 2 of the following criteria: Cough/ Dyspnea/ Spitting/ Thoracic pain/ Hyperthermia (>=38 °C) Hypothermia (< 35°C) AND new radiologic pulmonary infiltrate
• At admission or within 48 hours following hospital admission
• With 2 qSOFA criteria: MAP =< 100 mmHg, Respiratory Rate >= 22, Glasgow score < 15 OR on mechanical ventilation OR under vasopressor
• Age > 18
• affiliated to social security

Exclusion Criteria:

• Pregnancy
• immunodepression
• Pathology known to cause severe lymphopenia
• hospitalisation within 3 month before inclusion AND sepsis

patient with pneumopathy