inclusion criteria: * patient over 18 years of age; * patient with a suspected sars-cov-2 infection in a epidemic context, whether or not confirmed by pcr, or contact close to a pcr-confirmed case, typical chest ct scan (unsystematized frosted glass areas predominantly sub-pleural, and at a later stage of alveolar condensation with no excavations neither nodules nor masses) or positive serology ; * patient with isolated acute hyposmia persisting at d30. of the onset of signs of ca-mrsa-cov-2 infection; * absence of pcr-confirmed sars-cov-2 portage at the time of inclusion

inclusion criteria: * patient over 18 years of age; * patient with a suspected sars-cov-2 infection in a epidemic context, whether or not confirmed by pcr, or contact close to a pcr-confirmed case, typical chest ct scan (unsystematized frosted glass areas predominantly sub-pleural, and at a later stage of alveolar condensation with no excavations neither nodules nor masses) or positive serology ; * patient with isolated acute hyposmia persisting at d30. of the onset of signs of ca-mrsa-cov-2 infection; * absence of pcr-confirmed sars-cov-2 portage at the time of inclusion

inclusion criteria: - patient over 18 years of age; - patient with a suspected sars-cov-2 infection in a epidemic context, whether or not confirmed by pcr, or contact close to a pcr-confirmed case, typical chest ct scan (unsystematized frosted glass areas predominantly sub-pleural, and at a later stage of alveolar condensation with no excavations neither nodules nor masses) or positive serology ; - patient with isolated acute hyposmia persisting at d30. of the onset of signs of ca-mrsa-cov-2 infection; - absence of pcr-confirmed sars-cov-2 portage at the time of inclusion

inclusion criteria: - patient over 18 years of age; - patient with a suspected sars-cov-2 infection in a epidemic context, whether or not confirmed by pcr, or contact close to a pcr-confirmed case, typical chest ct scan (unsystematized frosted glass areas predominantly sub-pleural, and at a later stage of alveolar condensation with no excavations neither nodules nor masses) or positive serology ; - patient with isolated acute hyposmia persisting at d30. of the onset of signs of ca-mrsa-cov-2 infection; - absence of pcr-confirmed sars-cov-2 portage at the time of inclusion