inclusion criteria: - patients with covid 19 and having a positive rt-pcr at control in - 14 days from confirmation of infection for asymptomatic subjects and - 7 days after the disappearance of symptoms for pauci-symptomatic subjects non inclusion criteria: pregnant women and children under the age of 18 will not be included

inclusion criteria: - patients with covid 19 and having a positive rt-pcr at control in - 14 days from confirmation of infection for asymptomatic subjects and - 7 days after the disappearance of symptoms for pauci-symptomatic subjects non inclusion criteria: pregnant women and children under the age of 18 will not be included