https://en.mercopress.com/2020/08/14...nt-saliva-test
Israeli scientists at medical center develop Covid-19 instant saliva test
A newly developed saliva test aims to determine in less than a second whether or not you are infected with the novel coronavirus, Israel's largest medical centre said on Thursday.
Patients rinse their mouth with a saline wash and spit into a vial. This is then examined by a small spectral device that, in simple terms, shines light on the specimen and analyses the reaction to see if it is consistent with COVID-19.
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Still preliminary, but they claim 95% accuracy.