PCR of gargle lavage samples as effective as nasopharyngeal swabs to identify SARS-CoV-2 infection

Twenty-six subjects from a cohort of 80 tested positive for SARS-CoV-2 via nasopharyngeal swab, and all 26 tested positive using gargle lavage (mouthwash), according to new research.

source https://www.sciencedaily.com/releases/2021/07/210729122114.htm