Since December 2019, the world has faced a pandemic of COVID-19, an infectious disease caused by SARS-CoV-2, a virus that emerged in China. The reference diagnosis is based on the search for the SARS-COV-2 genome in the nasopharyngeal sample.

Carrying out this sample requires the competence of a healthcare professional and presents some inconveniences for the tested patient. Because saliva collection is simple, non-invasive, painless and inexpensive, and can be performed by poorly trained personnel, it could be an alternative to the reference nasopharyngeal sample. SARS-CoV2 detection in human saliva could be a potential diagnosis of COVID infection.

Inclusion Criteria:

• patient hospitalized at the Amiens CHU in a COVID-19 unit
• patient seen as outpatient in the area of infectious pathologies for COVID-19 infection

Exclusion Criteria:

• Patients under 18
• patients under guardianship or curators

Adult ambulatory patients screened for SARS Cov 19 at the CHU Amiens COViD clinic will be included in the study. A double sample will be taken from the saliva and the nasopharynx in parallel using the same sample kit. This double sampling has no direct impact on conventional patient management.