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A new saliva test for COVID-19 that can be completed in just a few hours has been authorized for use by the U.S. Food and Drug Administration (FDA). The test has several advantages over traditional nasal swab tests: It’s cheap, less invasive and can be performed without the need for certain testing components that have run short during the pandemic.

What’s more, the test, known as SalivaDirect, doesn’t require any proprietary equipment or technology; and instructions for the test will be made immediately available to laboratories around the country, the FDA said in a statement.

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