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01-15-2022, 03:17 AM
As Omicron spreads, some experts are calling for a switch to saliva-based tests, which may detect infections days earlier than nasal swabs do.
More... (https://www.nytimes.com/2022/01/14/health/saliva-testing-coronavirus-omicron.html)
More... (https://www.nytimes.com/2022/01/14/health/saliva-testing-coronavirus-omicron.html)