Saliva samples preferable to deep nasal swabs for testing COVID-19
As testing for the novel coronavirus continues to scale up, a new study finds that saliva samples are a “preferable” indicator for infection than the deep nasal swabs now widely used.
The study led by the Yale School of Public Health — and conducted at Yale New Haven Hospital with 44 inpatients and 98 health care workers — found that saliva samples taken from just inside the mouth provided greater detection sensitivity and consistency throughout the course of an infection than the broadly recommended nasopharyngeal (NP) approach. The study also concluded that there was less variability in results with the self-sample collection of saliva.
















