Saliva could hold clues to how sick you will get from COVID-19
Researchers compared #coronavirus loads in saliva & nasopharyngeal swabs.
They found that patients who developed severe #COVID19, were hospitalized, or died were more likely to have had high virus loads in their #Saliva tests, but not in their NP swabs.

https://sciencemag.org/news/2021/01/saliva-could-hold-clues-how-sick-you-will-get-covid-19