Saliva test for COVID outperforms commercial swab tests: Study

Saliva test to detect Covid-19 performs better than the nasal and oral swab tests authorised by the US FDA, according to a study. The study by Rockefeller University conducted a direct head-to-head comparison of 162 individuals who received both the "DRUL" saliva test and a conventional swab test. DRUL caught all of the cases that the swabs identified as positive, plus four positive cases that the swabs missed entirely.