If the study can be confirmed, this would be a big help as far as making it easier to do mass testing
"With further validation, widespread use of saliva sampling could be transformative for public health efforts: saliva self-collection circumvents direct healthcare worker-patient interaction, reducing overall risk of infection in hospitals and supply demands on swab kits and PPE. "
Thread:
https://www.medrxiv.org/content/10.1101/2020.04.16.20067835v1#disqus_thread